报告题目:Entropy, invariant measures and weak specification-like properties
报 告人:孙鹏 教授
报告时间:2022年5月27日(星期五)上午10:45---11:45
报告地点:腾讯会议:会议ID:638491397,会议密码:992346
邀 请人:马东魁 教授
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数学学院
2022年5月24日
报告摘要:We consider the dynamical systems satisfying some weak specification-like properties. We show that there is a dichotomy:Such a system is uniquely ergodic if and only if it has zero topological entropy, otherwise the set of invariant measures is a Poulsen simplex. If in addition the system is asymptotically entropy expansive, then it has ergodic measures of intermediate entropies, which are actually generic in certain compact subsets.
报告人简介:孙鹏,2010年在美国宾夕法尼亚州立大学(Pennsylvania State University)获得数学博士学位,现任中央财经大学中国经济与管理研究院教授。研究领域为动力系统与遍历论,研究工作发表于 Advances of Mathematics, Ergodic Theory and Dynamical Systems, Discrete and Continuous Dynamical Systems, Nonlinearity 等国际著名数学杂志,主持或参与国家自然科学基金多项。