EZ-structures and topological applications
| dc.creator | Farrell, F. T. | |
| dc.creator | Lafont, J. -F. | |
| dc.date | 2004-05-13 | |
| dc.date.accessioned | 2026-07-07T05:08:14Z | |
| dc.date.available | 2026-07-07T05:08:14Z | |
| dc.description | We introduce the notion of an EZ-structure on a group. Delta-hyperbolic groups and CAT(0)-groups have EZ-structures. We show torsion-free groups having an EZ-structure automatically have an action by homeomorphisms on a closed (high-dimensional) ball, which is well-behaved away from a "bad limit set" in the boundary of the ball. We show that groups having such an action satisfy the Novikov conjecture. For torsion-free delta-hyperbolic groups $G$, we also give a lower bound for the homotopy groups $π_n(P(BG))$, where $P$ is the stable topological pseudo-isotopy functor. | |
| dc.description | 21 pages, final version will appear in Comment. Math. Helv | |
| dc.identifier | https://arxiv.org/abs/math/0405260 | |
| dc.identifier | http://arxiv.org/abs/math/0405260 | |
| dc.identifier | Comment. Math. Helv., 80 (2005), pgs. 103-121. | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/71181 | |
| dc.subject | Geometric Topology | |
| dc.subject | K-Theory and Homology | |
| dc.title | EZ-structures and topological applications | |
| dc.type | text |