Jiang-type theorems for coincidences of maps into homogeneous spaces

Details Jiang-type theorems for coincidences of maps into homogeneous spaces Jiang-type theorems for coincidences of maps into homogeneous spaces

2007-01-24

arxiv.org/abs/math/0701702v3

Topol. Methods Nonlinear Anal. 31 (2008), no. 1, 151--160

Mathematics

Algebraic Topology

14 pages. This paper has been accepted for publication in Topological Methods in Nonlinear Analysis

Scientific paper

Let $f,g: X\to G/K$ be maps from a closed connected orientable manifold $X$ to an orientable coset space $M=G/K$ where $G$ is a compact connected Lie group, $K$ a closed subgroup and $\dim X=\dim M$. In this paper, we show that if $L(f,g)=0$ then $N(f,g)=0$; if $L(f,g)\ne 0$ then $N(f,g)=R(f,g)$ where $L(f,g), N(f,g)$, and $R(f,g)$ denote the Lefschetz, Nielsen, and Reidemeister coincidence numbers of $f$ and $g$, respectively. When $\dim X> \dim M$, we give conditions under which $N(f,g)=0$ implies $f$ and $g$ are deformable to be coincidence free.

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