<h1>Kechris, Alexander</h1>
<h2>Combined from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Frisch, Joshua R. and Kechris, Alexander S., el al. (2022) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20230125-514112400.2">Lifts of Borel actions on quotient spaces</a>; Israel Journal of Mathematics; Vol. 251; No. 2; 379-421; <a href="https://doi.org/10.1007/s11856-022-2434-z">10.1007/s11856-022-2434-z</a></li>
<li>Kechris, Alexander S. and Malicki, Maciej, el al. (2022) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20220107-488030400">On Polish groups admitting non-essentially countable actions</a>; Ergodic Theory and Dynamical Systems; Vol. 42; No. 1; 180-194; <a href="https://doi.org/10.1017/etds.2020.133">10.1017/etds.2020.133</a></li>
<li>Burton, Peter J. and Kechris, Alexander S. (2020) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170712-090422831">Weak containment of measure-preserving group actions</a>; Ergodic Theory and Dynamical Systems; Vol. 40; No. 10; 2681-2733; <a href="https://doi.org/10.1017/etds.2019.26">10.1017/etds.2019.26</a></li>
<li>Kechris, Alexander S. (2020) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20210707-142840752">Quasi-invariant measures for continuous group actions</a>; ISBN 978-1-4704-4332-0; Trends in Set Theory; 113-119; <a href="https://doi.org/10.1090/conm/752/15132">10.1090/conm/752/15132</a></li>
<li>Kechris, Alexander S. and Quorning, Vibeke (2019) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20191205-100802061">Co-induction and invariant random subgroups</a>; Groups, Geometry, and Dynamics; Vol. 13; No. 4; 1151-1193; <a href="https://doi.org/10.4171/GGD/517">10.4171/GGD/517</a></li>
<li>Kechris, Alexander S. and Nies, André, el al. (2018) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170712-083759861">The complexity of topological group isomorphism</a>; Journal of Symbolic Logic; Vol. 83; No. 3; 1190-1203; <a href="https://doi.org/10.1017/jsl.2018.25">10.1017/jsl.2018.25</a></li>
<li>Chen, Ruiyuan and Kechris, Alexander S. (2018) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170712-102415675">Structurable equivalence relations</a>; Fundamenta Mathematicae; Vol. 242; 109-185; <a href="https://doi.org/10.4064/fm428-7-2017">10.4064/fm428-7-2017</a></li>
<li>Burton, Peter J. and Kechris, Alexander S. (2017) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170712-091809776">Invariant random subgroups and action versus representation maximality</a>; Proceedings of the American Mathematical Society; Vol. 145; No. 9; 3961-3971; <a href="https://doi.org/10.1090/proc/13591">10.1090/proc/13591</a></li>
<li>Kechris, A. S. and Sokić, M., el al. (2017) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170630-111205546">Ramsey properties of finite measure algebras and topological dynamics of the group of measure preserving automorphisms: Some results and an open problem</a>; ISBN 978-1-4704-2256-1; Foundations of Mathematics: Logic at Harvard: Essays in Honor of W. Hugh Woodin's 60th Birthday; 69-85; <a href="https://doi.org/10.1090/conm/690">10.1090/conm/690</a></li>
<li>Macdonald, Henry L. and Kechris, Alexander S. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20161130-102008360">Borel equivalence relations and cardinal algebras</a>; Fundamenta Mathematicae; Vol. 235; 183-198; <a href="https://doi.org/10.4064/fm242-4-2016">10.4064/fm242-4-2016</a></li>
<li>Kechris, Alexander S. and Martin, Donald A., el al. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180806-100432570">Introduction to Q-theory</a>; ISBN 9781139519694; Ordinal Definability and Recursion Theory: The Cabal Seminar; 126-199; <a href="https://doi.org/10.1017/CBO9781139519694.006">10.1017/CBO9781139519694.006</a></li>
<li>Kechris, Alexander S. and Martin, Donald A. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180806-092249394">On the theory of Π13 sets of reals, II</a>; ISBN 9781139519694; Ordinal Definability and Recursion Theory: The Cabal Seminar; 200-219; <a href="https://doi.org/10.1017/CBO9781139519694.007">10.1017/CBO9781139519694.007</a></li>
<li>Kechris, Alexander S. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180806-093515411">On Spector classes</a>; ISBN 9781139519694; Ordinal Definability and Recursion Theory: The Cabal Seminar; 390-423; <a href="https://doi.org/10.1017/CBO9781139519694.013">10.1017/CBO9781139519694.013</a></li>
<li>Kechris, Alexander S. and Löwe, Benedikt, el al. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180806-100030179">Preface</a>; ISBN 9781139519694; Ordinal Definability and Recursion Theory: The Cabal Seminar; vii-x; <a href="https://doi.org/10.1017/CBO9781139519694.001">10.1017/CBO9781139519694.001</a></li>
<li>Kechris, Alexander S. and Löwe, Benedikt, el al. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180806-095451417">Ordinal Definability and Recursion Theory: The Cabal Seminar</a>; ISBN 9781139519694; <a href="https://doi.org/10.1017/CBO9781139519694">10.1017/CBO9781139519694</a></li>
<li>Angel, Omer and Kechris, Alexander S., el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150107-075104911">Random orderings and unique ergodicity of automorphism groups</a>; Journal of the European Mathematical Society; Vol. 16; No. 10; 2059-2095; <a href="https://doi.org/10.4171/JEMS/483">10.4171/JEMS/483</a></li>
<li>Conley, Clinton T. and Kechris, Alexander S., el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20131216-115036936">Stationary probability measures and topological realizations</a>; Israel Journal of Mathematics; Vol. 198; No. 1; 333-345; <a href="https://doi.org/10.1007/s11856-013-0025-8">10.1007/s11856-013-0025-8</a></li>
<li>Conley, Clinton T. and Kechris, Alexander S., el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130405-083026269">Ultraproducts of measure preserving actions and graph combinatorics</a>; Ergodic Theory and Dynamical Systems; Vol. 33; 334-374; <a href="https://doi.org/10.1017/S0143385711001143">10.1017/S0143385711001143</a></li>
<li>Conley, Clinton T. and Kechris, Alexander S. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-131021822">Measurable chromatic and independence numbers for ergodic
graphs and group actions</a>; Groups, Geometry, and Dynamics; Vol. 7; No. 1; 127-180; <a href="https://doi.org/10.4171/GGD/179">10.4171/GGD/179</a></li>
<li>Kechris, Alexander S. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180803-160520242">Dynamics of non-archimedean Polish groups</a>; ISBN 978-3-03719-120-0; European Congress of Mathematics, Kraków, 2-7 July, 2012; 375-397; <a href="https://doi.org/10.4171/120">10.4171/120</a></li>
<li>Kechris, Alexander S. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20120716-102713726">Weak containment in the space of actions of a free group</a>; Israel Journal of Mathematics; Vol. 189; No. 1; 461-507; <a href="https://doi.org/10.1007/s11856-011-0182-6">10.1007/s11856-011-0182-6</a></li>
<li>Kechris, Alexander S. and Sokić, Miodrag (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121126-103335875">Dynamical properties of the automorphism groups of the random poset and random distributive lattice</a>; Fundamenta Mathematicae; Vol. 218; No. 1; 69-94; <a href="https://doi.org/10.4064/fm218-1-4">10.4064/fm218-1-4</a></li>
<li>Kechris, Alexander S. and Tucker-Drob, Robin D. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-151353411">The complexity of classification problems in ergodic theory</a>; ISBN 9781139843065; Appalachian Set Theory: 2006-2012; 265-300; <a href="https://doi.org/10.1017/CBO9781139208574.010">10.1017/CBO9781139208574.010</a></li>
<li>Kechris, Alexander S. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130301-104948205">Trigonometric series and set theory</a>; Roczniki. Seria 2: Wiadomości Matematyczne; Vol. 48; No. 2; 109-118</li>
<li>Kechris, Alexander S. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145289">Homogeneous trees and projective scales</a>; ISBN 9781139028073; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; 270-303; <a href="https://doi.org/10.1017/cbo9781139028073.014">10.1017/cbo9781139028073.014</a></li>
<li>Kechris, Alexander S. and Löwe, Benedikt, el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143730">Original Numbering</a>; ISBN 9781139028073; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; xiii-xxii; <a href="https://doi.org/10.1017/cbo9781139028073.021">10.1017/cbo9781139028073.021</a></li>
<li>Kechris, Alexander S. and Löwe, Benedikt, el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143981">Preface</a>; ISBN 9781139028073; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; ix-xii; <a href="https://doi.org/10.1017/cbo9781139028073.001">10.1017/cbo9781139028073.001</a></li>
<li>Kechris, Alexander S. and Steel, John R., el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145629">Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II</a>; ISBN 9781139028073; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; <a href="https://doi.org/10.1017/cbo9781139028073">10.1017/cbo9781139028073</a></li>
<li>Kechris, Alexander S. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143314">A note on Wadge degrees</a>; ISBN 9781139028073; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; 43-46; <a href="https://doi.org/10.1017/cbo9781139028073.004">10.1017/cbo9781139028073.004</a></li>
<li>Kechris, Alexander S. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-103208698">In Memoriam: Gregory Hjorth, 1963-2011</a>; Bulletin of Symbolic Logic; Vol. 17; No. 3; 471-477</li>
<li>Kechris, Alexander S. and Solovay, Robert M., el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-140140332">The axiom of determinacy and the prewellordering property</a>; ISBN 9780521762038; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; 118-140; <a href="https://doi.org/10.1017/CBO9781139028073.008">10.1017/CBO9781139028073.008</a></li>
<li>Kechris, Alexander S. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-084248820">AD and projective ordinals</a>; ISBN 9780521762038; Wadge Degrees and Projective Ordinals: The Cabal Seminar, Volume II; 304-345; <a href="https://doi.org/10.1017/CBO9781139028073.015">10.1017/CBO9781139028073.015</a></li>
<li>Ioana, Adrian and Kechris, Alexander S., el al. (2009) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20090908-083705826">Subequivalence relations and positive-definite functions</a>; Groups, Geometry, and Dynamics; Vol. 3; No. 4; 579-625; <a href="https://doi.org/10.48550/arXiv.0806.0430">10.48550/arXiv.0806.0430</a></li>
<li>Kechris, Alexander S. and Woodin, W. Hugh (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130731-150603194">Generic codes for uncountable ordinals, partition properties, and elementary embeddings</a>; ISBN 9780521899512; The Cabal Seminar. Volume I - Games, Scales, and Suslin Cardinals; 379-397</li>
<li>Kechris, Alexander S. and Woodin, W. Hugh (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130731-151623397">The equivalence of partition properties and determinacy</a>; ISBN 9780521899512; The Cabal Seminar. Volume I - Games, Scales, and Suslin Cardinals; 355-378</li>
<li>Kechris, Alexander S. and Miller, Benjamin D. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-111643755">Means on equivalence relations</a>; Israel Journal of Mathematics; Vol. 163; No. 1; 241-262; <a href="https://doi.org/10.1007/s11856-008-0011-8">10.1007/s11856-008-0011-8</a></li>
<li>Kechris, Alexander S. and Moschovakis, Yiannis N. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143442">Notes on the theory of scales</a>; ISBN 9780511546488; Games, Scales and Suslin Cardinals: The Cabal Seminar, Volume I; 28-74; <a href="https://doi.org/10.1017/cbo9780511546488.003">10.1017/cbo9780511546488.003</a></li>
<li>Kechris, Alexander S. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-133923114">A coding theorem for measures</a>; ISBN 9780521899512; Games, Scales and Suslin Cardinals: The Cabal Seminar, Volume I; 398-403; <a href="https://doi.org/10.1017/CBO9780511546488.020">10.1017/CBO9780511546488.020</a></li>
<li>Kechris, Alexander S. and Kleinber, Eugene M., el al. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-141457603">The axiom of determinacy, strong partition properties, and nonsingular measures</a>; ISBN 9780521899512; Games, Scales and Suslin Cardinals: The Cabal Seminar, Volume I; 333-354; <a href="https://doi.org/10.1017/CBO9780511546488.017">10.1017/CBO9780511546488.017</a></li>
<li>Kechris, Alexander S. and Löwe, Benedikt, el al. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144069">Preface</a>; ISBN 9780511546488; Games, Scales and Suslin Cardinals: The Cabal Seminar, Volume I; ix-xi; <a href="https://doi.org/10.1017/cbo9780511546488.001">10.1017/cbo9780511546488.001</a></li>
<li>Kechris, Alexander S. and Löwe, Benedikt, el al. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-080825868">Games, Scales and Suslin Cardinals: The Cabal Seminar, Volume I</a>; ISBN 9780521899512; <a href="https://doi.org/10.1017/CBO9780511546488">10.1017/CBO9780511546488</a></li>
<li>Kechris, Alexander S. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144489">Suslin cardinals, k-Suslin sets, and the scale property in the hyperprojective hierarchy</a>; ISBN 9780511546488; Games, Scales and Suslin Cardinals: The Cabal Seminar, Volume I; 314-332; <a href="https://doi.org/10.1017/cbo9780511546488.016">10.1017/cbo9780511546488.016</a></li>
<li>Kechris, Alexander S. and Tsankov, Todor (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:KECpams08">Amenable actions and almost invariant sets</a>; Proceedings of the American Mathematical Society; Vol. 136; No. 2; 687-697; <a href="https://doi.org/10.1090/S0002-9939-07-09116-2">10.1090/S0002-9939-07-09116-2</a></li>
<li>Kechris, Alexander S. and Rosendal, Christian (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-084128445">Turbulence, amalgamation, and generic automorphisms of homogeneous structures</a>; Proceedings of the London Mathematical Society; Vol. 94; No. 2; 302-350; <a href="https://doi.org/10.1112/plms/pdl007">10.1112/plms/pdl007</a></li>
<li>Kechris, A. S. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-132700025">Unitary representations and modular actions</a>; Journal of Mathematical Sciences; Vol. 140; No. 3; 398-425; <a href="https://doi.org/10.1007/s10958-007-0449-y">10.1007/s10958-007-0449-y</a></li>
<li>Hjorth, Greg and Kechris, Alexander S. (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130610-145818965">Rigidity theorems for actions of product groups and countable Borel equivalence relations</a>; Memoirs of the American Mathematical Society; Vol. 177; No. 833; 1-109</li>
<li>Kechris, A. S. and Pestov, V. G., el al. (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-135759630">Fraïssé Limits, Ramsey Theory, and topological dynamics of automorphism groups</a>; Geometric and Functional Analysis; Vol. 15; No. 1; 106-189; <a href="https://doi.org/10.1007/s00039-005-0503-1">10.1007/s00039-005-0503-1</a></li>
<li>Kechris, Alexander S. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-095807587">Actions of Polish Groups and Classification Problems</a>; ISBN 9780521648615; Analysis and Logic; 115-187</li>
<li>Gao, Su and Kechris, Alexander S. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130516-152757565">On the classification of Polish metric spaces up to isometry</a>; Memoirs of the American Mathematical Society; Vol. 161; No. 766; 1-78</li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-092445662">Analysis and Logic</a>; ISBN 9781107360006; <a href="https://doi.org/10.1017/CBO9781107360006">10.1017/CBO9781107360006</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-150243521">Basic Model Theory I</a>; ISBN 9780521648615; Analysis and Logic; 31-33; <a href="https://doi.org/10.1017/CBO9781107360006.008">10.1017/CBO9781107360006.008</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144743">Turbulence I: Overview</a>; ISBN 9781107360006; Analysis and Logic; 137-142; <a href="https://doi.org/10.1017/cbo9781107360006.023">10.1017/cbo9781107360006.023</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144921">Turbulence III: Induced Actions</a>; ISBN 9781107360006; Analysis and Logic; 146-149; <a href="https://doi.org/10.1017/cbo9781107360006.025">10.1017/cbo9781107360006.025</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145310">Turbulence VII: The Second Main Theorem</a>; ISBN 9781107360006; Analysis and Logic; 163-183; <a href="https://doi.org/10.1017/cbo9781107360006.029">10.1017/cbo9781107360006.029</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145084">Gowers' dichotomy: A block Ramsey Theorem</a>; ISBN 9781107360006; Analysis and Logic; 217-222; <a href="https://doi.org/10.1017/cbo9781107360006.034">10.1017/cbo9781107360006.034</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145215">Turbulence VI: The First Main Theorem</a>; ISBN 9781107360006; Analysis and Logic; 157-162; <a href="https://doi.org/10.1017/cbo9781107360006.028">10.1017/cbo9781107360006.028</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-081922189">Actions of Locally Compact Groups</a>; ISBN 9780521648615; Analysis and Logic; 131-132; <a href="https://doi.org/10.1017/CBO9781107360006.021">10.1017/CBO9781107360006.021</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180815-101343549">The General Glimm-Effros Dichotomy</a>; ISBN 9780521648615; Analysis and Logic; 120-122; <a href="https://doi.org/10.1017/CBO9781107360006.018">10.1017/CBO9781107360006.018</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-135054931">Asymptotic structure</a>; ISBN 9780521648615; Analysis and Logic; 233-243; <a href="https://doi.org/10.1017/CBO9781107360006.036">10.1017/CBO9781107360006.036</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145409">Types</a>; ISBN 9781107360006; Analysis and Logic; 96-106; <a href="https://doi.org/10.1017/cbo9781107360006.016">10.1017/cbo9781107360006.016</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143625">Ordinal Indices</a>; ISBN 9781107360006; Analysis and Logic; 244-251; <a href="https://doi.org/10.1017/cbo9781107360006.037">10.1017/cbo9781107360006.037</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-082427900">Actions of Polish Groups</a>; ISBN 9780521648615; Analysis and Logic; 123-125; <a href="https://doi.org/10.1017/CBO9781107360006.019">10.1017/CBO9781107360006.019</a></li>
<li>Kechris, A. S. and Pestov, V., el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-105759569">Universal minimal flows of automorphism groups</a>; Bulletin Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques; Vol. 28; 93-106</li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-085559683">Alternative Formulations of the Theory</a>; ISBN 9780521648615; Analysis and Logic; 72-74; <a href="https://doi.org/10.1017/CBO9781107360006.013">10.1017/CBO9781107360006.013</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145747">Isomorphic Ultrapowers</a>; ISBN 9781107360006; Analysis and Logic; 55-71; <a href="https://doi.org/10.1017/cbo9781107360006.012">10.1017/cbo9781107360006.012</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145233">Homogeneous Structures</a>; ISBN 9781107360006; Analysis and Logic; 75-78; <a href="https://doi.org/10.1017/cbo9781107360006.014">10.1017/cbo9781107360006.014</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145363">Introduction</a>; ISBN 9781107360006; Analysis and Logic; 117-119; <a href="https://doi.org/10.1017/cbo9781107360006.017">10.1017/cbo9781107360006.017</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-151926459">Concluding remarks</a>; ISBN 9780521648615; Analysis and Logic; 254-256; <a href="https://doi.org/10.1017/CBO9781107360006.039">10.1017/CBO9781107360006.039</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-135928044">Actions of Countable Groups</a>; ISBN 9780521648615; Analysis and Logic; 126-130; <a href="https://doi.org/10.1017/CBO9781107360006.020">10.1017/CBO9781107360006.020</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180815-100341894">Distortion</a>; ISBN 9780521648615; Analysis and Logic; 223-232; <a href="https://doi.org/10.1017/CBO9781107360006.035">10.1017/CBO9781107360006.035</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144833">Turbulence II: Basic Facts</a>; ISBN 9781107360006; Analysis and Logic; 143-145; <a href="https://doi.org/10.1017/cbo9781107360006.024">10.1017/cbo9781107360006.024</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145797">The unconditional basic sequence problem and connections with distortion</a>; ISBN 9781107360006; Analysis and Logic; 208-216; <a href="https://doi.org/10.1017/cbo9781107360006.033">10.1017/cbo9781107360006.033</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143887">Positive Bounded Formulas</a>; ISBN 9781107360006; Analysis and Logic; 21-30; <a href="https://doi.org/10.1017/cbo9781107360006.007">10.1017/cbo9781107360006.007</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-150624583">Basic Model Theory II</a>; ISBN 9780521648615; Analysis and Logic; 43-54; <a href="https://doi.org/10.1017/CBO9781107360006.011">10.1017/CBO9781107360006.011</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145011">Turbulence IV: Some Examples</a>; ISBN 9781107360006; Analysis and Logic; 150-151; <a href="https://doi.org/10.1017/cbo9781107360006.026">10.1017/cbo9781107360006.026</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145810">More Model Theory</a>; ISBN 9781107360006; Analysis and Logic; 79-95; <a href="https://doi.org/10.1017/cbo9781107360006.015">10.1017/cbo9781107360006.015</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145668">Introduction</a>; ISBN 9781107360006; Analysis and Logic; 3-9; <a href="https://doi.org/10.1017/cbo9781107360006.003">10.1017/cbo9781107360006.003</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-103955912">Background material: The 60's and 70's</a>; ISBN 9780521648615; Analysis and Logic; 194-207; <a href="https://doi.org/10.1017/CBO9781107360006.032">10.1017/CBO9781107360006.032</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145891">Normed Space Structures</a>; ISBN 9781107360006; Analysis and Logic; 10-12; <a href="https://doi.org/10.1017/cbo9781107360006.004">10.1017/cbo9781107360006.004</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144394">Signatures</a>; ISBN 9781107360006; Analysis and Logic; 13-16; <a href="https://doi.org/10.1017/cbo9781107360006.005">10.1017/cbo9781107360006.005</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145519">Introduction</a>; ISBN 9781107360006; Analysis and Logic; xi-xiv; <a href="https://doi.org/10.1017/cbo9781107360006.002">10.1017/cbo9781107360006.002</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145503">Ultrapowers of Normed Space Structures</a>; ISBN 9781107360006; Analysis and Logic; 17-20; <a href="https://doi.org/10.1017/cbo9781107360006.006">10.1017/cbo9781107360006.006</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145709">Ultraproducts of Normed Space Structures</a>; ISBN 9781107360006; Analysis and Logic; 38-42; <a href="https://doi.org/10.1017/cbo9781107360006.010">10.1017/cbo9781107360006.010</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145154">The homogeneous Banach space problem</a>; ISBN 9781107360006; Analysis and Logic; 252-253; <a href="https://doi.org/10.1017/cbo9781107360006.038">10.1017/cbo9781107360006.038</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104145112">Turbulence V: Calmness</a>; ISBN 9781107360006; Analysis and Logic; 152-156; <a href="https://doi.org/10.1017/cbo9781107360006.027">10.1017/cbo9781107360006.027</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-082937079">Actions of the Infinite Symmetric Group</a>; ISBN 9780521648615; Analysis and Logic; 133-136; <a href="https://doi.org/10.1017/CBO9781107360006.022">10.1017/CBO9781107360006.022</a></li>
<li>Henson, C. Ward and Iovino, José, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145605">Introduction</a>; ISBN 9781107360006; Analysis and Logic; 191-193; <a href="https://doi.org/10.1017/cbo9781107360006.031">10.1017/cbo9781107360006.031</a></li>
<li>Jackson, S. and Kechris, A. S., el al. (2002) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130520-104729185">Countable Borel equivalence relations</a>; Journal of Mathematical Logic; Vol. 2; No. 1; 1-80</li>
<li>Kechris, A. S. and Sofronidis, N. E. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20111104-093324189">A strong generic ergodicity property of unitary and self-adjoint operators</a>; Ergodic Theory and Dynamical Systems; Vol. 21; 1459-1479; <a href="https://doi.org/10.1017/S0143385701001705">10.1017/S0143385701001705</a></li>
<li>Clemens, John D. and Gao, Su, el al. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-132314741">Polish Metric Spaces: Their Classification and Isometry Groups</a>; Bulletin of Symbolic Logic; Vol. 7; No. 3; 361-375; <a href="https://doi.org/10.2307/2687754">10.2307/2687754</a></li>
<li>Buss, Samuel R. and Kechris, Alexander S., el al. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-132240239">The prospects for mathematical logic in the twenty-first century</a>; Bulletin of Symbolic Logic; Vol. 7; No. 2; 169-196; <a href="https://doi.org/10.2307/2687773">10.2307/2687773</a></li>
<li>Hjorth, Greg and Kechris, Alexander S. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130610-142913085">Recent developments in the theory of Borel reducibility</a>; Fundamenta Mathematicae; Vol. 170; No. 1-2; 21-52</li>
<li>Camerlo, Riccardo and Kechris, Alexander S. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-095650096">Countable structures with a fixed group of automorphisms</a>; Israel Journal of Mathematics; Vol. 117; No. 1; 105-124; <a href="https://doi.org/10.1007/BF02773566">10.1007/BF02773566</a></li>
<li>Kechris, Alexander S. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20111201-082818221">On the Classification Problem for Rank 2 Torsion-Free Abelian Groups</a>; Journal of the London Mathematical Society; Vol. 62; No. 2; 437-450; <a href="https://doi.org/10.1112/S0024610700001411">10.1112/S0024610700001411</a></li>
<li>Adams, Scot and Kechris, Alexander S. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130524-130949007">Linear algebraic groups and countable Borel equivalence relations</a>; Journal of the American Mathematical Society; Vol. 13; No. 4; 909-943; <a href="https://doi.org/10.1090/S0894-0347-00-00341-6">10.1090/S0894-0347-00-00341-6</a></li>
<li>Kechris, Alexander S. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130731-144914781">Descriptive Dynamics</a>; ISBN 9780521786447; Descriptive set theory and dynamical systems; 231-258</li>
<li>Hjorth, G. and Kechris, A. S. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-075724313">The complexity of the classification of Riemann surfaces and complex manifolds</a>; Illinois Journal of Mathematics; Vol. 44; No. 1; 104-137</li>
<li>Dougherty, Randall and Kechris, Alexander S. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130624-113819994">How Many Turing Degrees are There?</a>; ISBN 9780821819227; Computability theory and its applications: current trends and open problems; 83-94; <a href="https://doi.org/10.1090/conm/257">10.1090/conm/257</a></li>
<li>Kechris, Alexander S. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-095020744">New Directions in Descriptive Set Theory</a>; Bulletin of Symbolic Logic; Vol. 5; No. 2; 161-174; <a href="https://doi.org/10.2307/421088">10.2307/421088</a></li>
<li>Kechris, A. S. and Solecki, S., el al. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-100529842">Borel Chromatic Numbers</a>; Advances in Mathematics; Vol. 141; No. 1; 1-44; <a href="https://doi.org/10.1006/aima.1998.1771">10.1006/aima.1998.1771</a></li>
<li>Kechris, Alexander S. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-113148990">Rigidity properties of Borel ideals on the integers</a>; Topology and Its Applications; Vol. 85; No. 1-3; 195-205; <a href="https://doi.org/10.1016/S0166-8641(97)00150-8">10.1016/S0166-8641(97)00150-8</a></li>
<li>Hjorth, Greg and Kechris, Alexander S., el al. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-142221264">Borel equivalence relations induced by actions of the symmetric group</a>; Annals of Pure and Applied Logic; Vol. 92; No. 1; 63-112; <a href="https://doi.org/10.1016/S0168-0072(97)00049-3">10.1016/S0168-0072(97)00049-3</a></li>
<li>Kechris, Alexander S. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-083928827">The descriptive classification of some classes of C∗-algebras</a>; ISBN 9789810234324; Proceedings of the Sixth Asian Logic Conference; 121-149</li>
<li>Gordon, Alexander Y. and Kechris, Alexander S. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-105907286">Measurable enumeration of eigenelements</a>; Applicable Analysis: An International Journal; Vol. 71; No. 1-4; 41-61</li>
<li>Hjorth, Greg and Kechris, Alexander S. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130520-144530065">New Dichotomies for Borel Equivalence Relations</a>; Bulletin of Symbolic Logic; Vol. 3; No. 3; 329-346; <a href="https://doi.org/10.2307/421148">10.2307/421148</a></li>
<li>Kechris, Alexander S. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-135837396">On the concept of π^1_1-completeness</a>; Proceedings of the American Mathematical Society; Vol. 125; No. 6; 1811-1814; <a href="https://doi.org/10.1090/S0002-9939-97-03770-2">10.1090/S0002-9939-97-03770-2</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-133826211">The classification of hypersmooth Borel equivalence relations</a>; Journal of the American Mathematical Society; Vol. 10; No. 1; 215-242; <a href="https://doi.org/10.1090/S0894-0347-97-00221-X">10.1090/S0894-0347-97-00221-X</a></li>
<li>Hjorth, Greg and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-141337004">Borel equivalence relations and classifications of countable models</a>; Annals of Pure and Applied Logic; Vol. 82; No. 3; 221-272; <a href="https://doi.org/10.1016/S0168-0072(96)00006-1">10.1016/S0168-0072(96)00006-1</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-094122252">Introduction</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; viii-xii; <a href="https://doi.org/10.1017/CBO9780511735264.002">10.1017/CBO9780511735264.002</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-083346365">Actions with Borel Orbit Equivalence Relations</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; 98-115; <a href="https://doi.org/10.1017/CBO9780511735264.010">10.1017/CBO9780511735264.010</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-154314089">Actions of Polish Groups</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; 13-32; <a href="https://doi.org/10.1017/CBO9780511735264.005">10.1017/CBO9780511735264.005</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-132523681">Preface</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; vii; <a href="https://doi.org/10.1017/CBO9780511735264.001">10.1017/CBO9780511735264.001</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-134913115">Polish Groups</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; 3-12; <a href="https://doi.org/10.1017/CBO9780511735264.004">10.1017/CBO9780511735264.004</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-125320670">Model Theory and the Vaught Conjecture</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; 82-97; <a href="https://doi.org/10.1017/CBO9780511735264.009">10.1017/CBO9780511735264.009</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180809-161147539">Better topologies</a>; ISBN 9780511735264; The Descriptive Set Theory of Polish Group Actions; 53-81; <a href="https://doi.org/10.1017/cbo9780511735264.008">10.1017/cbo9780511735264.008</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180815-091513340">The Descriptive Set Theory of Polish Group Actions</a>; ISBN 9780521576055; <a href="https://doi.org/10.1017/CBO9780511735264">10.1017/CBO9780511735264</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180821-074806630">Invariant Measures and Paradoxical Decompositions</a>; ISBN 9780521576055; The Descriptive Set Theory of Polish Group Actions; 44-52; <a href="https://doi.org/10.1017/CBO9780511735264.007">10.1017/CBO9780511735264.007</a></li>
<li>Hjorth, Greg and Kechris, Alexander S. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130520-160211996">Analytic Equivalence Relations and Ulm-Type Classifications</a>; Journal of Symbolic Logic; Vol. 60; No. 4; 1273-1300; <a href="https://doi.org/10.2307/2275888">10.2307/2275888</a></li>
<li>Kechris, A. S. and Solecki, S. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-103730289">Approximation of analytic by Borel sets and definable countable chain conditions</a>; Israel Journal of Mathematics; Vol. 89; No. 1-3; 343-356; <a href="https://doi.org/10.1007/BF02808208">10.1007/BF02808208</a></li>
<li>Kechris, Alexander S. (1994) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-110331634">Topology and descriptive set theory</a>; Topology and Its Applications; Vol. 58; No. 3; 195-222; <a href="https://doi.org/10.1016/0166-8641(94)00146-4">10.1016/0166-8641(94)00146-4</a></li>
<li>Dougherty, R. and Jackson, S., el al. (1994) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-092754518">The structure of hyperfinite Borel equivalence relations</a>; Transactions of the American Mathematical Society; Vol. 341; No. 1; 193-225; <a href="https://doi.org/10.2307/2154620">10.2307/2154620</a></li>
<li>Kechris, Alexander S. (1994) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130524-135334590">Countable Sections for Locally Compact Group Actions. II</a>; Proceedings of the American Mathematical Society; Vol. 120; No. 1; 241-247</li>
<li>Kechris, Alexander S. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-103113640">Amenable Versus Hyperfinite Borel Equivalence Relations</a>; Journal of Symbolic Logic; Vol. 58; No. 3; 894-907; <a href="https://doi.org/10.2307/2275102">10.2307/2275102</a></li>
<li>Becker, Howard and Kechris, Alexander S. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130523-095229531">Borel actions of Polish groups</a>; Bulletin of the American Mathematical Society; Vol. 28; No. 2; 334-341; <a href="https://doi.org/10.1090/S0273-0979-1993-00383-5">10.1090/S0273-0979-1993-00383-5</a></li>
<li>Kechris, Alexander S. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130516-154918991">Countable sections for locally compact group actions</a>; Ergodic Theory and Dynamical Systems; Vol. 12; No. 2; 283-295; <a href="https://doi.org/10.1017/S0143385700006751">10.1017/S0143385700006751</a></li>
<li>Kechris, A. S. and Louveau, A. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-082635644">Descriptive Set Theory and Harmonic Analysis</a>; Journal of Symbolic Logic; Vol. 57; No. 2; 413-441; <a href="https://doi.org/10.2307/2275277">10.2307/2275277</a></li>
<li>Kechris, Alexander S. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130516-154155660">The structure of Borel equivalence relations in Polish spaces</a>; ISBN 978-1-4613-9756-4; Set theory of the continuum; 89-102; <a href="https://doi.org/10.1007/978-1-4613-9754-0_7">10.1007/978-1-4613-9754-0_7</a></li>
<li>Dougherty, Randall and Kechris, Alexander S. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-102333066">The Complexity of Antidifferentiation</a>; Advances in Mathematics; Vol. 88; No. 2; 145-169; <a href="https://doi.org/10.1016/0001-8708(91)90006-S">10.1016/0001-8708(91)90006-S</a></li>
<li>Kechris, Alexander S. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-093201219">Hereditary properties of the class of closed sets of uniqueness for trigonometric series</a>; Israel Journal of Mathematics; Vol. 73; No. 2; 189-198; <a href="https://doi.org/10.1007/BF02772948">10.1007/BF02772948</a></li>
<li>Kechris, A. S. and Woodin, W. H. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-105346791">A strong boundedness theorem for dilators</a>; Annals of Pure and Applied Logic; Vol. 52; No. 1-2; 93-97; <a href="https://doi.org/10.1016/0168-0072(91)90041-J">10.1016/0168-0072(91)90041-J</a></li>
<li>Kechris, Alexander S. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130517-103738099">Boundedness theorems for dilators and ptykes</a>; Annals of Pure and Applied Logic; Vol. 52; No. 1-2; 79-92; <a href="https://doi.org/10.1016/0168-0072(91)90040-S">10.1016/0168-0072(91)90040-S</a></li>
<li>Kechris, Alexander S. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-150404346">Amenable Equivalence Relations and Turing Degrees</a>; Journal of Symbolic Logic; Vol. 56; No. 1; 182-194; <a href="https://doi.org/10.2307/2274913">10.2307/2274913</a></li>
<li>Kechris, A. S. and Louveau, A., el al. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-150609710">The Class Of Synthesizable Pseudomeasures</a>; Illinois Journal of Mathematics; Vol. 35; No. 1; 107-146</li>
<li>Harrington, L. A. and Kechris, A. S., el al. (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-131913642">A Glimm-Effros dichotomy for Borel equivalence relations</a>; Journal of the American Mathematical Society; Vol. 3; No. 4; 903-928; <a href="https://doi.org/10.1090/S0894-0347-1990-1057041-5">10.1090/S0894-0347-1990-1057041-5</a></li>
<li>Kechris, A. S. and Louveau, A. (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-151355415">A Classification of Baire Class 1 Functions</a>; Transactions of the American Mathematical Society; Vol. 318; No. 1; 209-236</li>
<li>Kechris, Alexander S. and Louveau, Alain (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-084032401">Covering theorems for uniqueness and extended uniqueness sets</a>; Colloquium Mathematicum; Vol. 59; No. 1; 63-79</li>
<li>Kechris, A. S. (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130626-124718433">The Classification of Hyperfinite Borel Equivalence Relations</a></li>
<li>Kechris, Alexander S. and Marker, David, el al. (1989) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-084327264">Π^1_1 Borel Sets</a>; Journal of Symbolic Logic; Vol. 54; No. 3; 915-920</li>
<li>Dougherty, R. and Kechris, A. S. (1989) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130524-113257744">Hausdorff Measures and Sets of Uniqueness for Trigonometric Series</a>; Proceedings of the American Mathematical Society; Vol. 105; No. 4; 894-897; <a href="https://doi.org/10.2307/2047049">10.2307/2047049</a></li>
<li>Kechris, Alexander S. and Lyons, Russell (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-131009335">Ordinal Rankings on Measures Annihilating Thin Sets</a>; Transactions of the American Mathematical Society; Vol. 310; No. 2; 747-758; <a href="https://doi.org/10.2307/2000989">10.2307/2000989</a></li>
<li>Kechris, Alexander S. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-105652249">The Descriptive Set Theory of σ-Ideals of Compact Sets</a>; ISBN 978-0-444-87455-9; Logic Colloquium 1988: Proceedings of the Colloquium; 117-138</li>
<li>Kechris, Alexander S. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-074122964">A coding theorem for measures</a>; ISBN 978-3-540-50020-9; Cabal Seminar 81–85; 103-109; <a href="https://doi.org/10.1007/BFb0084972">10.1007/BFb0084972</a></li>
<li>Kechris, Alexander S. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-090419888">Subsets of ℵ_1 constructible from a real</a>; ISBN 978-3-540-50020-9; Cabal Seminar 81-85; 110-116; <a href="https://doi.org/10.1007/BFb0084973">10.1007/BFb0084973</a></li>
<li>Kechris, Alexander S. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-072000863">&quot;AD + uniformization&quot; is equivalent to &quot;half ad_R&quot;</a>; ISBN 978-3-540-50020-9; Cabal Seminar 81-85; 98-102; <a href="https://doi.org/10.1007/BFb0084971">10.1007/BFb0084971</a></li>
<li>Ajtai, M. and Kechris, A. S. (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-115611198">The Set of Continuous Functions with the Everywhere Convergent Fourier Series</a>; Transactions of the American Mathematical Society; Vol. 302; No. 1; 207-221; <a href="https://doi.org/10.2307/2000906">10.2307/2000906</a></li>
<li>Kechris, A. S. and Louveau, A., el al. (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-103643006">The Structure of σ-Ideals of Compact Sets</a>; Transactions of the American Mathematical Society; Vol. 301; No. 1; 263-288; <a href="https://doi.org/10.2307/2000338">10.2307/2000338</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-104404521">Classification of the Complexity of U</a>; ISBN 9780521358118; Descriptive Set Theory and the Structure of Sets of Uniqueness; 104-138; <a href="https://doi.org/10.1017/CBO9780511758850.007">10.1017/CBO9780511758850.007</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144307">The shrinking method, the theorem of Körner and Kaufman, and the solution to the Borel basis problem for U</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; 231-265; <a href="https://doi.org/10.1017/cbo9780511758850.010">10.1017/cbo9780511758850.010</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180815-100650741">Extended Uniqueness Sets</a>; ISBN 9780521358118; Descriptive Set Theory and the Structure of Sets of Uniqueness; 266-308; <a href="https://doi.org/10.1017/CBO9780511758850.011">10.1017/CBO9780511758850.011</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-081409898">Descriptive Set Theory and the Structure of Sets of Uniqueness</a>; ISBN 9780521358118; <a href="https://doi.org/10.1017/CBO9780511758850">10.1017/CBO9780511758850</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144144">Preface</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; vii; <a href="https://doi.org/10.1017/cbo9780511758850.001">10.1017/cbo9780511758850.001</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-084749723">The Algebra A of Functions with Absolutely Convergent Fourier Series, Pseudofunctions and Pseudomeasures</a>; ISBN 9780521358118; Descriptive Set Theory and the Structure of Sets of Uniqueness; 51-79; <a href="https://doi.org/10.1017/CBO9780511758850.005">10.1017/CBO9780511758850.005</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180816-160145462">Introduction</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; 1-16; <a href="https://doi.org/10.1017/cbo9780511758850.002">10.1017/cbo9780511758850.002</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144661">Trigonometric series and sets of uniqueness</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; 21-50; <a href="https://doi.org/10.1017/cbo9780511758850.004">10.1017/cbo9780511758850.004</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104143805">The Piatetski-Shapiro hierarchy of U-sets</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; 139-192; <a href="https://doi.org/10.1017/cbo9780511758850.008">10.1017/cbo9780511758850.008</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180810-150902218">Characterizing Rajchman Measures</a>; ISBN 9780521358118; Descriptive Set Theory and the Structure of Sets of Uniqueness; 309-327; <a href="https://doi.org/10.1017/CBO9780511758850.012">10.1017/CBO9780511758850.012</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144571">Symmetric perfect sets and the Salem-Zygmund theorem</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; 80-103; <a href="https://doi.org/10.1017/cbo9780511758850.006">10.1017/cbo9780511758850.006</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180815-091126114">Decomposing U-Sets into Simpler Sets</a>; ISBN 9780521358118; Descriptive Set Theory and the Structure of Sets of Uniqueness; 193-230; <a href="https://doi.org/10.1017/CBO9780511758850.009">10.1017/CBO9780511758850.009</a></li>
<li>Kechris, Alexander S. and Louveau, Alain (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180817-104144223">Sets of resolution and synthesis</a>; ISBN 9780511758850; Descriptive Set Theory and the Structure of Sets of Uniqueness; 328-348; <a href="https://doi.org/10.1017/cbo9780511758850.013">10.1017/cbo9780511758850.013</a></li>
<li>Kechris, Alexander S. (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130611-134802777">The Complexity of Antidifferentiation, Denjoy Totalization, and Hyperarithmetic Reals</a>; ISBN 978-0-8218-0110-9; Proceedings of the International Congress of Mathematicians; 307-313</li>
<li>Kechris, Alexander S. and Woodin, W. Hugh (1986) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-145231519">Ranks of differentiable functions</a>; Mathematika; Vol. 33; No. 2; 252-278; <a href="https://doi.org/10.1112/S0025579300011244">10.1112/S0025579300011244</a></li>
<li>Kechris, Alexander S. and Solovay, Robert M. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-101108599">On the Relative Consistency Strength of Determinacy Hypothesis</a>; Transactions of the American Mathematical Society; Vol. 290; No. 1; 179-211; <a href="https://doi.org/10.2307/1999790">10.2307/1999790</a></li>
<li>Kechris, Alexander S. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-152728059">Determinacy with Complicated Strategies</a>; Proceedings of the American Mathematical Society; Vol. 94; No. 2; 333-336; <a href="https://doi.org/10.1090/S0002-9939-1985-0784188-0">10.1090/S0002-9939-1985-0784188-0</a></li>
<li>Kechris, Alexander S. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130611-130509199">Determinacy and the Structure of L(R)</a>; ISBN 978-0-8218-1447-5; Recursion Theory; 271-283; <a href="https://doi.org/10.1090/pspum/042">10.1090/pspum/042</a></li>
<li>Kechris, Alexander S. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-102414726">Sets of everywhere singular functions</a>; ISBN 978-3-540-15673-4; Recursion theory week; 233-244; <a href="https://doi.org/10.1007/BFb0076223">10.1007/BFb0076223</a></li>
<li>Kechris, Alexander S. (1984) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-083650112">The Axiom of Determinacy Implies Dependent Choices in L(R)</a>; Journal of Symbolic Logic; Vol. 49; No. 1; 161-173</li>
<li>Becker, Howard S. and Kechris, Alexander S. (1984) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130611-104220186">Sets of ordinals constructible from trees and the third Victoria Delfino problem</a>; ISBN 978-0-8218-5026-8; Axiomatic Set Theory; 13-29; <a href="https://doi.org/10.1090/conm/031">10.1090/conm/031</a></li>
<li>Kechris, Alexander S. and Woodin, W. Hugh (1983) <a href="https://resolver.caltech.edu/CaltechAUTHORS:KECpnas83">Equivalence of partition properties and determinacy</a>; Proceedings of the National Academy of Sciences of the United States of America; Vol. 80; No. 6; 1783-1786; PMCID PMC393690</li>
<li>Kechris, Alexander S. and Martin, Donald A., el al. (1983) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-151329535">Introduction to Q-Theory</a>; ISBN 978-3-540-12688-1; Cabal Seminar 79-81; 199-282; <a href="https://doi.org/10.1007/BFb0071702">10.1007/BFb0071702</a></li>
<li>Kechris, Alexander S. (1982) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-145645449">Effective Ramsey Theorems in the Projective Hierarchy</a>; ISBN 9780444864178; Proceedings of the Herbrand Symposium; 179-187; <a href="https://doi.org/10.1016/S0049-237X(08)71883-4">10.1016/S0049-237X(08)71883-4</a></li>
<li>Harrington, Leo A. and Kechris, Alexander S. (1982) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130521-101019031">Ordinal games and their applications</a>; ISBN 0-444-85423-1; Logic, methodology, and philosophy of science VI; 273-277</li>
<li>Kechris, Alexander S. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-105719531">Forcing with Δ perfect trees and minimal Δ-degrees</a>; Journal of Symbolic Logic; Vol. 46; No. 4; 803-816</li>
<li>Harrington, Leo A. and Kechris, Alexander S. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-085823503">On the determinacy of games on ordinals</a>; Annals of Mathematical Logic; Vol. 20; No. 2; 109-154; <a href="https://doi.org/10.1016/0003-4843(81)90001-2">10.1016/0003-4843(81)90001-2</a></li>
<li>Kechris, Alexander S. and Solovay, Robert M., el al. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-131451792">The axiom of determinacy and the prewellordering property</a>; ISBN 978-3-540-10288-5; Cabal Seminar 77-79; 101-125; <a href="https://doi.org/10.1007/BFb0090237">10.1007/BFb0090237</a></li>
<li>Kechris, Alexander S. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-144033005">Souslin cardinals, κ-souslin sets and the scale property in the hyperprojective hierarchy</a>; ISBN 978-3-540-10288-5; Cabal Seminar 77-79; 127-146; <a href="https://doi.org/10.1007/BFb0090238">10.1007/BFb0090238</a></li>
<li>Kechris, Alexander S. and Kleinberg, Eugene M., el al. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-114321828">The axiom of determinacy, strong partition properties and nonsingular measures</a>; ISBN 978-3-540-10288-5; Cabal Seminar 77-79; 75-99; <a href="https://doi.org/10.1007/BFb0090236">10.1007/BFb0090236</a></li>
<li>Kechris, Alexander S. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130529-162228399">A note on Wadge degrees</a>; ISBN 978-3-540-38422-9; Cabal Seminar 77-79; 165-168; <a href="https://doi.org/10.1007/BFb0090240">10.1007/BFb0090240</a></li>
<li>Kechris, Alexander S. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-110245492">Homogeneous trees and projective scales</a>; ISBN 978-3-540-10288-5; Cabal Seminar 77-79; 33-73; <a href="https://doi.org/10.1007/BFb0090235">10.1007/BFb0090235</a></li>
<li>Kechris, Alexander S. (1980) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-104437708">Recent Advances in the Theory of Higher Level Projective Sets</a>; ISBN 978-0-444-85345-5; The Kleene Symposium; 149-166; <a href="https://doi.org/10.1016/S0049-237X(08)71258-8">10.1016/S0049-237X(08)71258-8</a></li>
<li>Kechris, Alexander S. (1979) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130610-140456846">An overview of descriptive set theory</a>; Publications Mathématiques de l'Université Pierre et Marie Curie; Vol. 4</li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-081912845">The Perfect Set Theorem and Definable Wellorderings of the Continuum</a>; Journal of Symbolic Logic; Vol. 43; No. 4; 630-634</li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-081838953">Countable ordinals and the analytical hierarchy, II</a>; Annals of Mathematical Logic; Vol. 15; No. 3; 193-223; <a href="https://doi.org/10.1016/0003-4843(78)90010-4">10.1016/0003-4843(78)90010-4</a></li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-083000082">Minimal Upper Bounds for Sequences of Δ^1_(2n)-Degrees</a>; Journal of Symbolic Logic; Vol. 43; No. 3; 502-507</li>
<li>Kechris, A. S. and Martin, D. A. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130625-140857081">On the theory of ∏_3^1 sets of reals</a>; Bulletin of the American Mathematical Society; Vol. 84; No. 1; 149-151; <a href="https://doi.org/10.1090/S0002-9904-1978-14447-4">10.1090/S0002-9904-1978-14447-4</a></li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-134758796">AD  and projective ordinals</a>; ISBN 978-3-540-09086-1; Cabal Seminar 76-77; 91-132; <a href="https://doi.org/10.1007/BFb0069296">10.1007/BFb0069296</a></li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-074153858">On Spector classes</a>; ISBN 9783540090861; Cabal Seminar 76–77; 245-277; <a href="https://doi.org/10.1007/BFb0069303">10.1007/BFb0069303</a></li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130530-070413635">On Transfinite Sequences of Projective Sets with an Application to ∑^1_2 Equivalence Relations</a>; ISBN 9780444851789; Logic Colloquium '77; 155-160; <a href="https://doi.org/10.1016/S0049-237X(08)71998-0">10.1016/S0049-237X(08)71998-0</a></li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130531-091303529">Forcing in analysis</a>; ISBN 978-3-540-08926-1; Higher Set Theory; 277-302; <a href="https://doi.org/10.1007/BFb0103105">10.1007/BFb0103105</a></li>
<li>Kechris, Alexander S. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-100408397">Spector second order classes and reflection</a>; ISBN 9780444851635; Generalized recursion theory II; 147-183</li>
<li>Kechris, Alexander S. and Moschovakis, Yiannis N. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-094742588">Notes on the Theory of Scales</a>; ISBN 978-3-540-09086-1; Cabal Seminar 76–77; 1-53; <a href="https://doi.org/10.1007/BFb0069294">10.1007/BFb0069294</a></li>
<li>Kechris, Alexander S. (1977) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-135105483">On a notion of smallness for subsets of the Baire space</a>; Transactions of the American Mathematical Society; Vol. 229; 191-207</li>
<li>Harrington, Leo and Kechris, Alexander S. (1977) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-111450945">∏^1_2 singletons and O^#</a>; Fundamenta Mathematicae; Vol. 95; No. 3; 167-171</li>
<li>Kechris, Alexander S. (1977) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-103036161">Classifying Projective-like Hierarchies</a>; Bulletin of the Greek Mathematical Society; Vol. 18; No. 2; 254-275</li>
<li>Harrington, Leo A. and Kechris, Alexander S. (1976) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130624-085131170">On Monotone vs. Nonmonotone Induction</a>; Bulletin of the American Mathematical Society; Vol. 82; No. 6; 888-890</li>
<li>Harrington, Leo A. and Kechris, Alexander S. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130529-152738529">A Basis Result for Σ^0_3 Sets of Reals with an Application to Minimal Covers</a>; Proceedings of the American Mathematical Society; Vol. 53; No. 2; 445-448</li>
<li>Kechris, A. S. and Martin, D. A. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130529-073254315">A note on universal sets for classes of countable G_δ'S</a>; Mathematika; Vol. 22; No. 1; 43-45; <a href="https://doi.org/10.1112/S0025579300004484">10.1112/S0025579300004484</a></li>
<li>Harrington, Leo A. and Kechris, Alexander S. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130524-135424900">On Characterizing Spector Classes</a>; Journal of Symbolic Logic; Vol. 40; No. 1; 19-24</li>
<li>Kechris, Alexander S. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130522-132343731">The Theory of Countable Analytical Sets</a>; Transactions of the American Mathematical Society; Vol. 202; No. 2; 259-297</li>
<li>Kechris, A. S. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130612-115543154">Countable ordinals and the analytical hierarchy. I.</a>; Pacific Journal of Mathematics; Vol. 60; No. 1; 223-227</li>
<li>Kechris, A. S. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:KECpjm75">Countable ordinals and the analytical hierarchy, I</a>; Pacific Journal of Mathematics; Vol. 60; No. 1; 223-227</li>
<li>Kechris, Alexander S. (1974) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130529-103426984">On Projective Ordinals</a>; Journal of Symbolic Logic; Vol. 39; No. 2; 269-282</li>
<li>Kechris, Alexander S. (1973) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130528-122128969">Measure and category in effective descriptive set theory</a>; Annals of Mathematical Logic; Vol. 5; No. 4; 337-384; <a href="https://doi.org/10.1016/0003-4843(73)90012-0">10.1016/0003-4843(73)90012-0</a></li>
<li>Kechris, Alexander S. and Moschovakis, Yiannis N. (1972) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130529-155104187">Two theorems about projective sets</a>; Israel Journal of Mathematics; Vol. 12; No. 4; 391-399; <a href="https://doi.org/10.1007/BF02764630">10.1007/BF02764630</a></li>
</ul>