Lusternik-Schnirelmann Theory for a Morse Decomposition
英文摘要：
Let $ϕ^t$ 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 $ν$ on $N/L$, we prove that $ν(N/L)\leq ν([L])+\sum_{i=1}^n ν(M_i)$. As a result if $ϕ^t|_I$ is gradient-like and $X$ is semi-locally contractible, then $ϕ^t$ has at least $ν_H(h(I))-1$ rest points in $I$ where $h(I)$ is the Conley index of $I$ and $ν_H$ is the Homotopy Lusternik-Schnirelmann category.
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