Department of Mathematics                           University of Haifa
 
                      Special Topology and Geometry Seminar
 
Speaker: Michael Brandenbursky
         Vanderbilt University
 
Title:   Quasi-isometric embeddings, quasi-morphisms, L^p-metrics and groups
                of volume-preserving diffeomorphisms
 
Date:    Thursday, May 10, 2012
 
Place:   Room 614 of the Science & Education Building, Univ. of Haifa
 
Time:    12:10
 
                   ===>  Note special day !! <===
 
          Abstract:
 
Let M be a smooth compact connected oriented manifold of
dimension at least two endowed with a volume form. Assuming certain
conditions on the fundamental group of M, we will construct
quasi-isometric embeddings of either free Abelian or direct products of
non-Abelian free groups into the group of volume-preserving
diffeomorphisms of M equipped with the L^p metric induced by a Riemannian
metric on M. If time permits we will explain a relation between
quasi-morphisms, the L^p metrics and quasi-isometric embeddings of vector
spaces into the above group. This talk is partially based on the joint
work with Jarek Kedra. Everybody is welcome---this talk will be
self-contained: no prior knowledge in the subject  is assumed.
 
---------------------------------------------------------
Technion Math Net-2 (TECHMATH2)
Editor: Michael Cwikel   <techm@math.technion.ac.il> 
Announcement from: David Blanc   <blanc@math.haifa.ac.il>