School Colloquium——Ergodic theory of surface diffeomorphisms
报告人：杨大伟 (苏州大学)
时间：2025-10-31 14:00-15:00
地点：智华楼四元厅
报告摘要：Surface diffeomorphisms occupy a particularly important position in the study of differentiable dynamical systems, as surfaces represent the lowest-dimensional setting where sufficient complexity arises to illustrate the intricacies of diffeomorphism dynamics.
Ergodic theory serves as a powerful tool for characterizing dynamical complexity through the use of invariant measures. In recent years, significant progress has been made in this direction—particularly regarding measures of maximal entropy and Sinai-Ruelle-Bowen measures.
In this talk, we will provide an overview of this theory and present our recent findings in this research area.
报告人介绍：杨大伟，苏州大学教授，博士生导师；长期从事微分动力系统及其遍历理论的研究，特别是在Palis稠密性猜测、SRB测度、有奇点向量场的动力学、熵理论等方面取得了一系列进展，并在Ann. Sci. Éc. Norm. Super.、J. Eur. Math. Soc.、Adv. Math.、Comm. Math. Phys.、Trans. Amer. Math. Soc.、Math. Z.、Sci. China Math.等期刊发表了多篇学术论文。
杨大伟主持国家自然科学基金委国家杰出青年基金、曾主持优秀青年基金以及多项面上项目，并参与国家自然科学基金委重大项目、科技部重点专项等项目；获得教育部自然科学一等奖（第二参与人）、江苏省自然科学三等奖（第三参与人）、江苏省特聘教授、江苏省数学成就奖、姑苏领军人才等多项荣誉。
