Lusternik-Schnirelmann Theory for a Morse Decomposition

Details Lusternik-Schnirelmann Theory for a Morse Decomposition Lusternik-Schnirelmann Theory for a Morse Decomposition

2000-09-26

arxiv.org/abs/math/0009224v1

Mathematics

Dynamical Systems

9 pages

Scientific paper

Let $\phi^t$ be a continuous flow on a metric space $X$ and $I$ be an isolated invariant set with an index pair $(N,L)$ and a Morse decomposition $\{M_i\}^n_{i=1}$. For every category $\nu$ on $N/L$, we prove that $\nu(N/L)\leq \nu([L])+\sum_{i=1}^n \nu(M_i)$. As a result if $\phi^t|_I$ is gradient-like and $X$ is semi-locally contractible, then $\phi^t$ has at least $\nu_H(h(I))-1$ rest points in $I$ where $h(I)$ is the Conley index of $I$ and $\nu_H$ is the Homotopy Lusternik-Schnirelmann category.

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