Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4657698 | Topology | 2007 | 25 Pages |
Abstract
Let GG be a torsion-free discrete group with a finite-dimensional classifying space BGBG. We show that GG has a dual-Dirac morphism if and only if a certain coarse (co-)assembly map is an isomorphism. Hence the existence of a dual-Dirac morphism for such groups is a metric, that is, coarse, invariant. We get results for groups with torsion as well.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
Heath Emerson, Ralf Meyer,