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Speaker:
Ian Hambleton
Affiliation:
McMaster/MPI
Date:
Mon, 20/06/2011 - 15:00 - 16:00
Location:
MPIM Lecture Hall
Parent event:
Topics in Topology A discrete group $\Gamma$ can act freely and properly on $S^n \times R^m$, for some
$n, m >0$ if and only if $\Gamma$ is a countable group with periodic Farrell cohomology:
Connolly-Prassidis (1989) assuming $vcd(\Gamma)$ finite, Adem-Smith (2001).
For free co-compact actions there are additional restrictions, but no general sufficient
conditions are known. The talk will survey this problem and its connection to the
Farrell-Jones assembly map in K-theory and L-theory.
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