A characterization of the Dirac Dual Dirac Method

Details A characterization of the Dirac Dual Dirac Method A characterization of the Dirac Dual Dirac Method

2003-11-20

arxiv.org/abs/math/0311349v1

Mathematics

K-Theory and Homology

Scientific paper

Let G be a discrete, torsion free group with a finite dimensional classifying space BG. We show that the existence of a gamma-element for such G is a metric, that is, coarse, invariant of G. We also obtain results for groups with torsion. The method of proof involves showing that a group G possesses a gamma-element if and only if a certain coarse (co)-assembly map is an isomorphism.

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