Alexander S. Kechris

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Alexander S. Kechris
Alexander S. Kechris (left)
Born (1946-03-23) March 23, 1946 (age 70)
Nationality Greek
Fields Mathematics
Institutions California Institute of Technology
Doctoral advisor Yiannis N. Moschovakis

Alexander (Alekos) Sotirios Kechris (Greek: Αλέξανδρος Σωτήριος Κεχρής; born March 23, 1946) is a descriptive set theorist and ergodic theorist at California Institute of Technology. He has made major contributions to the theory of Borel equivalence relations and the theory of automorphism groups of uncountable structures.

Kechris earned his Ph.D. in 1972 under the direction of Yiannis N. Moschovakis, with a dissertation titled Projective Ordinals and Countable Analytic Sets.

In 2012 he became a fellow of the American Mathematical Society.[1]

Selected publications[edit]

  • A. S. Kechris, "Classical Descriptive Set Theory", Springer-Verlag, 1995.
  • H. Becker, A. S. Kechris, "The descriptive set theory of Polish group actions" (London Mathematical Society Lecture Note Series), University of Cambridge, 1996.
  • A.S. Kechris, V.G. Pestov and S. Todorcevic, "Fraïssé limits, Ramsey theory and topological dynamics of automorphism groups", Geometric and Functional Analysis 15 (1) (2005), 106-189.
  • A.S. Kechris, "Global Aspects of Ergodic Group Actions", Mathematical Surveys and Monographs, 160, American Mathematical Society, 2010.[2]


  1. ^ List of Fellows of the American Mathematical Society, retrieved 2013-01-27.
  2. ^ Weiss, Benjamin (2014). "Review: Global aspects of ergodic group actions by Alexander S. Kechris" (PDF). Bull. Amer. Math. Soc. (N.S.). 51 (1): 163–168. doi:10.1090/s0273-0979-2013-01422-8. 

External links[edit]