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首页> 外文期刊>Journal of the Mathematical Society of Japan >Expansion growth of smooth codimension-one foliations
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Expansion growth of smooth codimension-one foliations

机译:光滑的codimension-one叶的扩展生长

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摘要

The entropy of foliations is defined by Ghys, Langevin and Walczak ([G-L-W]) as follows. Let F be a codimension q foliation of class C~0 on a compact manifold M. Fixing a finite foliation cover U of (M, F), we obtain the holonomy pseudogroup H of local homeomorphisms of R~q induced by U. We define an integer s_n(ε) (n∈N, ε > 0) to be the maximum cardinality of (n, ε)-separating sets with respect to the holonomy pseudogroup H.
机译:叶片的熵由Ghys,Langevin和Walczak([G-L-W])定义如下。令F为紧流形M上C〜0类的一个余维q叶。固定(M,F)的有限叶覆盖U,我们得到由U诱导的R〜q的局部同胚的全假伪群H。整数s_n(ε)(n∈N,ε> 0)是相对于完整性伪群H的(n,ε)分离集的最大基数。

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