-
Fixed-point theory for homogeneous spaces
- American Journal of Mathematics
- Johns Hopkins University Press
- Volume 120, Number 1, February 1998
- pp. 23-42
- 10.1353/ajm.1998.0008
- Article
- Additional Information
- Purchase/rental options available:
Let G be a compact connected Lie group, K a closed subgroup (not necessarily connected) and M = G/K the homogeneous space of left cosets. Assume that M is orientable and p*: Hn(G) → Hn(M) is nonzero, where n = dim M. In this paper, we employ an equivariant version of Nielsen root theory to show that the converse of the Lefschetz fixed-point theorem holds true for all selfmaps on M. Moreover, if the Lefschetz number of a selfmap f : M → M is nonzero, then the Nielsen number of f coincides with the Reidemeister number of f, which can be computed algebraically.