Workshop program

Information on the Workshop ``von Neumann Algebras and Ergodic Theory''

UCLA March 17-19, 2007.

Organised by Ed Effros, Narutaka Ozawa, Sorin Popa, Dima Shlyakhtenko.

This is the first workshop in a series. Our idea is to bring together several people interested in the areas of
von Neumann Aalgebras/Group Theory/Orbit Equivalence Ergodic Theory/Borel Classification.

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 by funds from the NSF.

Confirmed participants:

Miklos Abert, Uri Bader, Yves Cornulier, Ed Effros, Talia Fernos,
David Fisher, Alex Furman, Damien Gaboriau, Greg Hjorth, Cyril Houdayer, Adrian Ioana,
Alekos Kechris, Yoshikata Kida, Ben Miller, Nicolas Monod, Jesse Peterson,
Mikael Pichot, Sorin Popa, Romain Tessera, Roman Sasyk, Dima Shlyakhtenko, Terry Tao,
Simon Thomas, Todor Tsankov, Yoshimichi Ueda, Stefaan Vaes, Laszlo Zsido.

Photo from the March 2007 Workshop:

Group photo March 2007

Schedule of talks:

09:00-09:40	Popa	Monod	Thomas
10:10-10:50	Shlyakhtenko	Ozawa	Peterson
11:20-12:00	Pichot	Tsankov	Fisher
Lunch break
02:00-02:40	Hjorth	Bader	Vaes
03:10-03:50	Kida	Furman	Abert
04:20-05:00	Miller	Ioana	Tao

Abert	Profinite actions from an ergodic point of view
Bader	Superrigidity via Weyl groups 1
Fisher	Strengthening property (T)
Furman	Superrigidity via Weyl groups 2
Hjorth	Classification by countable structures
Ioana	Superrigidity for profinite actions of Kazhdan groups
Kida	Measurable rigidity of mapping class groups
Miller	Coordinatewise decomposition and dichotomy theorems in descriptive set theory
Monod	Superrigidity and cat0 spaces
Ozawa	Boundary double amenability
Peterson	L^2-rigidity in von Neumann algebras
Pichot	The space of triangle buildings
Popa	Some problems on OE and vNE of group actions
Shlyakhtenko	Free entropy dimension
Tao	A quantitative nilpotent Ratner theorem, and the distribution of the primes
Thomas	Some open problems on countable Borel equivalence relations
Tsankov	Modular Actions and Amenable Representations
Vaes	Popa's rigidity theorems and II_1 factors without non-trivial finite index subfactors