Workshop at UCLA

Information on the Workshop

``von Neumann Algebras and Ergodic Theory''

to be held at UCLA March 15-18, 2009.

Organised by Ed Effros, Adrian Ioana, Sorin Popa, Yehuda Shalom, Dima Shlyakhtenko.

This is the second workshop in a series, the first having been held at UCLA in March 2007.
Our idea is to bring together several people interested in the areas of
von Neumann Aalgebras/Group Theory/Orbit Equivalence Ergodic Theory/Borel Classification.

Talks will start the morning of Sunday March 15 and end by mid-day Wednesday, March 18.

Partial funding for the workshop is made possible by the Kristyn Yuki Takesaki Lagae Endowed Fund, established
in 2004 by Masamichi Takesaki. The workshop is also partially supported this year by funds from the NSF.

Talks will take place in the Math Dept Room 6627. Final list of participants, with the dates of their stay at UCLA in March:

Aurelien Alvarez (14-19), Jason Asher (UCLA), Tim Austin (UCLA), Dietmar Bisch (visiting UCLA for the year),
Louis Bowen (14-17), Aviv Censor (UCR), Ion Chifan (UCLA), Yves Cornulier (14-18), Samuel Coskey (14-18),
Darren Creutz (UCLA), Steven Deprez (13-20), Ed Effros (UCLA), Inessa Epstein (Caltech&UCLA),
Sebastien Falguieres (13-20), Alex Furman (14-17), Damien Gaboriau (14-21), Zubin Gautam (UCLA), Julien Giol (13-20),
Greg Hjorth (14-18), Cyril Houdayer (UCLA), Adrian Ioana (UCLA&Caltech), Alekos Kechris (Caltech),
Yoshikata Kida (14-19), Samuel Coskey (14-18), Nicolas Monod (14-19), Narutaka Ozawa (8-24), David Penneys (14-18),
Jesse Peterson (14-19), Sorin Popa (UCLA), Hiroki Sako (UCLA), Roman Sasyk (1-21), Scott Schneider (14-18),
Dima Shlyakhtenko (UCLA), Thomas Sinclair (14-18), Owen Sizemore (UCLA), Terry Tao (UCLA), Romain Tessera (15-18),
Simon Thomas (14-19), Todor Tsankov (9-23), Stefaan Vaes (11-18), Alain Valette (13-20), John Williams (14-18),
Adam Winchester (UCLA), Makoto Yamashita (14-19).

Photos from workshop

Schedule (all talks are in Math Science 6627)

Time	Sunday	Monday	Tuesday	Wednesday
9-9:40	Bowen	Tao	Thomas	Kechris
10-10:40	Houdayer	Vaes	Kida	Tsankov
11:10-11:50	Furman	Ioana	Peterson	Ozawa
Lunch
2-2:40	Sako	Epstein	Valette
2:50-3:30	Hjorth	Gaboriau	Monod
4-4:40	Sasyk	Alvarez	Chifan
4:50-5:30	Popa	Shlyakhtenko	Shalom

Alvarez	Bass-Serre type results for orbit equivalence relations, part II
Bowen	Entropy in measurable dynamics
Chifan	Bass-Serre type results for II₁ factors
Epstein	Equivalence relations with infinitely many ends and percolation
Furman	L¹ measure equivalence of hyperbolic lattices and simplicial volume
Gaboriau	Bass-Serre type results for orbit equivalence relations, part I
Hjorth	Treeable equivalence relations
Houdayer	Strongly solid group factors which are not interpolated free group factors
Ioana	Relative property T for the subequivalence relations induced by the action of SL(2,Z) on T²
Kechris	Global aspects of ergodic group actions
Kida	Measure-theoretic rigidity for amalgamated free products
Monod	On Dixmier's unitarizability problem
Ozawa	Classes of II₁ factors with at most one Cartan subalgebra
Peterson	A class of II₁ factors with unique group-measure space decomposition
Popa	Revisiting some problems in W*-rigidity
Sako	Measure equivalence rigidity and bi-exactness of groups
Sasyk	Borel reducibility and classifiability of factors
Shalom	Bi-invariant metrics on (arithmetic) groups
Shlyakhtenko	Some applications of free stochastic calculus to II₁ factors
Tao	Quantitative formulations of Gromov's theorem on groups of polynomial growth
Thomas	Some Consequences of Martin's Conjecture
Tsankov	A characterization of equivalence relations generated by profinite actions
Vaes	Cocycle and orbit superrigidity for lattices in SL(n,R) acting on homogeneous spaces
Valette	The bounded/proper alternative for isometric actions on Hilbert spaces