Recent and upcoming talks by Clinton Conley

Clinton Conley: Unfriendly colorings of measure-preserving graphs of finite cost

Mathematical logic seminar – Jan 16 2018 Time:     3:30pm – 4:30 pm Room:     Wean Hall 8220 Speaker:         Clinton Conley Department of Mathematical Sciences CMU Title:     Unfriendly colorings of measure-preserving graphs of finite cost Abstract: We show that any measure-preserving Borel graph on a standard probability space with finite average degree admits a Borel unfriendly coloring on a conull set. continue reading…

Clinton Conley: Measure-theoretic unfriendly colorings II

Mathematical logic seminar – Nov 14 2017 Time:     3:30pm – 4:30 pmRoom:     Wean Hall 8220 Speaker:         Clinton Conley Department of Mathematical Sciences CMU Title:     Measure-theoretic unfriendly colorings II Abstract: Given a graph with vertices painted red and blue, we say the coloring is unfriendly if every red vertex has at least as many blue neighbors as red, and vice versa. continue reading…

Logic Colloquium 2018, Udine, July 23 – 28, 2018

The Logic Col­lo­quium 2018 is the an­nual Eu­ro­pean summer meeting of the As­so­ci­a­tion of Sym­bolic Logic (ASL), that will be held during July 23—28, 2018 at the Uni­ver­sity of Udine, Italy. continue reading…

Clinton Conley: Measure-theoretic unfriendly colorings

Mathematical logic seminar – Oct 31 2017 Time:     3:30pm – 4:30 pm Room:     Wean Hall 8220 Speaker:         Clinton Conley Department of Mathematical Sciences CMU Title:     Measure-theoretic unfriendly colorings Abstract: Given a graph with vertices painted red and blue, we say the coloring is unfriendly if every red vertex has at least as many blue neighbors as red, and vice versa. continue reading…

Simon Thomas: the first 60 years, Rutgers, September 15-17, 2017

The conference Simon Thomas: the first 60 years will take place this September 15–17 at Rutgers University, New Brunswick, New Jersey. List of speakers Clinton Conley Ilijas Farah Matt Foreman Alekos Kechris Justin Moore Andrew Marks Itay Neeman Anush Tserunyan Robin Tucker-Drob Saharon Shelah Hugh Woodin (canceled) Organizer Grigor Sargsyan Schedule. continue reading…

Noncommutative Geometry and Operator Algebras, Nashville, May 5–11, 2017

Noncommutative Geometry and Operator Algebras May 5 – May 11, 2017 Vanderbilt University, Nashville, Tennessee, USA http://my.vanderbilt.edu/ncgoa17 The Fifteenth Annual Spring Institute on Noncommutative Geometry and Operator Algebras will take place at Vanderbilt University from May 5 to May 11, 2017, under the direction of Jesse Peterson. continue reading…

2017 North American ASL Meeting: March 20-23, 2017

Conference web site Plenary speakers M. Aschenbrenner (UCLA) C. Conley (Carnegie Mellon University) I. Kalimullin (Kazan Federal Univeristy) P. Koellner (Harvard University) A. Medvedev (City College of New York) A. Rinot (Bar-Ilan University) M. continue reading…

Clinton Conley: amenability and μ-hyperfiniteness II

Mathematical logic seminar – January 19, 2016 Time:     12:30 – 13:30 Room:     Wean Hall 8220 Speaker:         Clinton Conley Department of Mathematical Sciences CMU Title:     Amenability and μ-hyperfiniteness Abstract:     Ornstein-Weiss showed in the early 80s that any measure-preserving Borel action of a countable amenable group on a standard probability space generates, after deleting a null set, a hyperfinite orbit equivalence relation. continue reading…

Clinton Conley: Amenability and μ-hyperfiniteness

Mathematical logic seminar – January 12, 2016 Time:     12:30 – 13:30 Room:     Wean Hall 8220 Speaker:         Clinton Conley Department of Mathematical Sciences CMU Title:     Amenability and μ-hyperfiniteness Abstract:     Ornstein-Weiss showed in the early 80s that any measure-preserving Borel action of a countable amenable group on a standard probability space generates, after deleting a null set, a hyperfinite orbit equivalence relation. continue reading…

Clinton Conley: Borel marker sets and hyperfiniteness

[this talk is a warmup for the Appalachian set theory workshop at CMU on October 24, where Su Gao (UNT) will speak on “Countable abelian group actions”] Mathematical logic seminar – September 29, 2015 Time:     12:30 – 13:30 Room:     Wean Hall 7201 Speaker:         Clinton Conley Department of Mathematical Sciences CMU Title:     Borel marker sets and hyperfiniteness Abstract:     A classical tool in ergodic theory is the Rokhlin lemma, which more or less states that any ergodic measure-preserving automorphism of a standard probability space is the uniform limit of periodic automorphisms. continue reading…