L2 invariants and their relatives for finitely generated groups September 12 to September 16, 2011 American Institute of Mathematics, Palo Alto, CA Organizers: Miklos Abert, Mark Sapir, and Dimitri Shlyakhtenko Description: This workshop, sponsored by AIM and the NSF, will be devoted to the study of the asymptotic behavior of some natural invariants of finitely generated groups. Deadline: May 12, 2011 Details: http://aimath.org/ARCC/workshops/l2invfggroups.html