Montreal Geometric & Combinatorial Group Theory Seminar

Speaker:   Daniel Wise (McGill)
Title:         “On the vanishing of the 2nd L2 betti number”
Date:        3:30PM, Wednesday, January 28, 2004
Place:       Room 920, Burnside Hall, McGill University

I will discuss conditions on a 2-complex which guarantee that its 2nd L 2  betti number vanishes. One application is that the fundamental group of certain 2-complexes are “coherent” which means that all their finitely generated subgroups are finitely presented. You will need only the most basic definitions concerning cellular homology to follow my talk.