Morse decomposition for gradient-like multi-valued autonomous and nonautonomous dynamical systems
Morse decomposition for gradient-like multi-valued autonomous and nonautonomous dynamical systems
复制标题
类梯度多值自主和非自主动力系统的莫尔斯分解
DOI:
10.3934/dcdss.2020092
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发表时间:
2020-08
期刊:
影响因子:
--
通讯作者:
Caraballo Tomás
中科院分区:
文献类型:
--
作者:
Wang Yejuan;Caraballo Tomás
In this paper, we first prove that the property of being a gradient-like general dynamical system and the existence of a Morse decomposition are equivalent. Next, the stability of gradient-like general dynamical systems is analyzed. In particular, we show that a gradient-like general dynamical system is stable under perturbations, and that Morse sets are upper semi-continuous with respect to perturbations. Moreover, we prove that any solution of perturbed general dynamical systems should be close to some Morse set of the unperturbed gradient-like general dynamical system. We do not assume local compactness for the metric phase space \begin{document}$ X $\end{document} , unlike previous results in the literature. Finally, we extend the Morse decomposition theory of single-valued nonautonomous dynamical systems to the multi-valued case, without imposing any compactness of the parameter spaces.
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