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arXiv 1607.07412math.DSmath.AGmath.GN
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Étale动力系统与拓扑熵

Étale dynamical systems and topological entropy

Tuyen Trung Truong

摘要:

本文考虑了动力系统的拓扑熵的两个问题。我们建议用拓扑和代数动力系统的类似物来解决这些问题。第一个问题是定义拓扑动力系统$(f,X,Ω)$的拓扑熵。其主要思想是利用-除了不变的紧子空间的$(X,Ω)$ -紧化的étale涵盖$π:(f',X',Ω')\rightarrow (f,X,Ω)$,即$π\circ f'=f\circ π$和纤维的$π$都是有限的。我们证明了一些基本的结果,并提出了一个猜想,其有效性使我们能够证明进一步的结果。第二个问题是定义代数动力系统的拓扑熵,要求它尽可能接近上同调群的拉回。为此,我们开发了一个代数动力系统的童话模拟。

英文摘要:

In this paper, we consider two questions about topological entropy of dynamical systems. We propose to resolve these questions by the same approach of using étale analogs of topological and algebraic dynamical systems. The first question is to define topological entropy for a topological dynamical system $(f,X,Ω)$. The main idea is to make use - in addition to invariant compact subspaces of $(X,Ω)$ - of compactifications of étale covers $π:(f',X',Ω')\rightarrow (f,X,Ω)$, that is $π\circ f'=f\circ π$ and the fibers of $π$ are all finite. We prove some basic results and propose a conjecture, whose validity allows us to prove further results. The second question is to define topological entropy for algebraic dynamical systems, with the requirement that it should be as close to the pullback on cohomology groups as possible. To this end, we develop an étale analog of algebraic dynamical systems.

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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