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arXiv 1905.09072math.GT
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三维流形上具有孤立临界点的函数的拓扑结构

Topological structure of functions with isolated critical points on a 3-manifold

B. I. Hladysh, A. O. Prishlyak

摘要:

对于三维流形上光滑函数的每一个孤立的临界点,我们都对应一棵树(无圈图)。我们将证明函数在临界点的邻域内拓扑等价当且仅当相应的树是同构的。在闭三维流形上,构造了具有孤立临界点的函数的完全拓扑不变量。

英文摘要:

To each isolated critical point of a smooth function on a 3-manifold we put in correspondence a tree (graph without cycles). We will prove that functions are topologically equivalent in the neighborhoods of critical points if and only if the corresponding trees are isomorphic. A complete topological invariant of functions with isolated critical points, on a closed 3-manifold, will be constructed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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