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arXiv 1306.1585math.DS
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曲面自同态的若干性质

Some properties of surface diffeomorphisms

A. Arbieto, C. A. Morales

摘要:

我们得到了$C^1$类属曲面的一些性质,如{ \em非平凡}吸引子的有限性,仅用有限个{ \em双曲}同宿类的类属曲面的逼近,本质双曲性与所有{ \em耗散}同宿类的双曲性之间的等价性(以及螺旋汇的有限性).特别地,我们得到了汇的有限性与螺旋汇的有限性之间的等价性,汇的聚点集的控制的连续性,以及公理A与所有同宿类的双曲性之间的等价性.这些结果改进了\cite{A},\cite{a},\cite{m},并解决了Abdenur,Bonatti,Crockier和Díaz \cite{abcd}的一个猜想.

英文摘要:

We obtain some properties of $C^1$ generic surface diffeomorphisms as finiteness of {\em non-trivial} attractors, approximation by diffeomorphisms with only a finite number of {\em hyperbolic} homoclinic classes, equivalence between essential hyperbolicity and the hyperbolicity of all {\em dissipative} homoclinic classes (and the finiteness of spiral sinks). In particular, we obtain the equivalence between finiteness of sinks and finiteness of spiral sinks, abscence of domination in the set of accumulation points of the sinks, and the equivalence between Axiom A and the hyperbolicity of all homoclinic classes. These results improve \cite{A}, \cite{a}, \cite{m} and settle a conjecture by Abdenur, Bonatti, Crovisier and Díaz \cite{abcd}.

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