Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-11T11:43:22.362Z Has data issue: false hasContentIssue false

Ends of spaces related by a covering map

Published online by Cambridge University Press:  20 November 2018

Georg Peschke*
Affiliation:
Dept. of Mathematics, University of Alberta, Edmonton, Canada T6G 2G1
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Consider a covering p : X → B of connected topological spaces. If B is a compact polyhedron, a classical result of H. Hopf [4] says that the end space E(X) of X is an invariant of the group G of covering transformations. Thus it becomes meaningful to define the end space of the finitely generated group G as E(G) := E(X).

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1990

References

1. Cohen, D., Groups of cohomological dimension one, SLN 245, Berlin 1972.Google Scholar
2. Freudenthal, H., Über die Enden topologischer Räume und Gruppen, Math. Z. 33 (1931), 692713.Google Scholar
3. Freudenthal, H., Über die Enden diskreter Raume und Gruppen, Comm. Math. Helv. 17 (1945), 138.Google Scholar
4. Hopf, H., Enden offener Räume und unendliche diskontinuierliche Gruppen, Comm. Math. Helv. 16 (1943), 81100.Google Scholar
5. Lee, R., Raimond, F., Manifolds covered by Euclidean space, Topology 14 (1975), 4957.Google Scholar
6. Mihalik, M., Semistability at the end of a group extension, Trans AMS 277 (1983), 307321.Google Scholar
7. Stalling, J., Group theory and three-dimensional manifolds, Yale Math. Monographs 4, Yale University Press 1971.Google Scholar