Finite groups acting on homology manifolds
- Creators
- Aschbacher, Michael
Abstract
In this paper we study homology manifolds T admitting the action of a finite group preserving the structure of a regular CW-complex on T. The CW-complex is parameterized by a poset and the topological properties of the manifold are translated into a combinatorial setting via the poset. We concentrate on n-manifolds which admit a fairly rigid group of automorphisms transitive on the n-cells of the complex. This allows us to make yet another translation from a combinatorial into a group theoretic setting. We close by using our machinery to construct representations on manifolds of the Monster, the largest sporadic group. Some of these manifolds are of dimension 24, and hence candidates for examples to Hirzebruch's Prize Question in [HBJ], but unfortunately closer inspection shows the A^-genus of these manifolds is 0 rather than 1, so none is a Hirzebruch manifold.
Additional Information
Pacific journal of mathematics, Vol. 181, No. 3, 1997 - Dedicated to the Memory of Olga Taussky-Todd. This work was partially supported by NSF DMS-9101237 and NSF DMS-9622843.Files
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Additional details
- Eprint ID
- 544
- Resolver ID
- CaltechAUTHORS:ASCpjm97
- Created
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2005-07-14Created from EPrint's datestamp field
- Updated
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2019-10-02Created from EPrint's last_modified field