Gunnar Carlsson: Free (Z/2Z)^k actions on finite complexes and some problems in etale and motivic homotopy
Gunnar Carlsson, Stanford University
Time: Wed 2013-03-27 13.15 - 14.15
Location: Room 3733, Institutionen för matematik, KTH
Subject area: Algebra and Geometry Seminar
An interesting conjecture about free actions of 2-tori T (finite elementary abelian 2-groups) is the the sum of the Betti numbers of the complex being acted upon is greater than 2^{rank T}. We will show how this problem can be translated into algebraic geometric terms, and then discuss how one might approach the problem with etale or motivic methods.