Coarse cohomology theories
Algebraic Topology
2022-11-21 v2 K-Theory and Homology
Metric Geometry
Abstract
We propose the notion of a coarse cohomology theory and study the examples of coarse ordinary cohomology, coarse stable cohomotopy and of coarse cohomology theories obtained by dualizing coarse homology theories. We show that the dualizing spectrum of a finitely generated torsion-free group only depends on the coarse motivic spectrum represented by the underlying bornological coarse space of the group. This in particular implies a conjecture of J. R. Klein that the dualizing spectrum of a group is a coarse invariant.
Keywords
Cite
@article{arxiv.1711.08599,
title = {Coarse cohomology theories},
author = {Ulrich Bunke and Alexander Engel},
journal= {arXiv preprint arXiv:1711.08599},
year = {2022}
}
Comments
35 pages