Aspherical groups and manifolds with extreme properties
Presenter
October 17, 2011
Keywords:
- Banach space
- geometric group theory
- differentiation theory
- embedding theorems
- group homology
- homological algebra
MSC:
- 58C20
- 46-xx
- 46Bxx
- 54C25
- 20F65
- 20Fxx
Abstract
We prove that every aspherical recursively presented group embeds into a group with finite aspherical presentation complex. By results of Gromov and Davis, this implies that there exists a closed aspherical manifold of any dimension >3 (smooth in dimension >4) with universal cover of infinite asymptotic dimension, and not embeddable uniformly into a Hilbert space. It is also a counterexample to the Baum-Connes conjecture with coefficients.