星光直播
星光直播
报告[2026]116号
(高水平大学建设系列报告1375号)
报告题目:On the fast Lyapunov spectrum for Markov Renyi maps
报告人:张一威 教授(安徽理工大学)
报告时间:2026年11月13日14:00-14:40
报告地点:腾讯会议291612936
报告摘要:In this talk, we study the multifractal analysis for Markov-Rényi maps, which form a canonical class of piecewise differentiable interval maps, with countably many branches and may contain a parabolic fixed point simultaneously, and do not assume any distortion hypotheses. We develop a geometric approach, independent of thermodynamic formalism, to study the fast Lyapunov spectrum for Markov-Rényi maps. Our study can be regarded as a refinement of the Lyapunov spectrum at infinity. We demonstrate that the fast Lyapunov spectrum is a piecewise constant function, possibly exhibiting a discontinuity at infinity. This is a joint work with Lulu Fang, Carlos Gustavo Moreira, and Zhichao Wang.
报告人简介:张一威,安徽理工大学数学与大数据星光直播
、中科大—安理工数学基础科学中心教授。研究工作集中在拓扑动力系统和遍历论及其在实际模型中的应用。目前在《Inventiones Mathematicae》、《Journal of the European Mathematical Society》、《Advances in Mathematics》等国际知名期刊发表论文30余篇。
邀请人:邹玉茹
星光直播
2026年11月12日