報告承辦單位：數學與統計學院
報告題目：Boundarybehavior for simple exchangeable fragmentation-Coagulation process in critical slow regime.
報告摘要：Boundarybehavior for simpleexchangeable fragmentation-Coagulationprocess was studied first in Foucart(2022) and later in Foucart and Zhou (2022).But some critical cases were left unaddressed.In this talk, for a critical simple exchangeable fragmentation-coagulation process in slow regime where the coagulation rate and fragmentation rate are of the same order, we show that there exist phase transitions for its boundary behavior at infinity depending on the asymptotics of the difference between the two rates, and find rather sharp conditions for different boundary behaviors. This talk is based on joint work with Lina Ji.
報告人姓名：周曉文
報告人所在單位：Concordia University
報告人職稱：教授
報告時間：2025年6月4日（星期三）上午10:00-11:00
報告地點：理科樓A419
報告人簡介：周曉文教授，1999 年在美國加州大學Berkeley分校獲統計學博士學位。現任加拿大Concordia 大學數學與統計系終身教授。長期從事概率論與隨機過程理論的研究，主要研究興趣包括測度值隨機過程，Levy過程及其在種群遺傳學和風險理論中的應用。先后在《Annals of Probability》《Probability and Related Fields》《Journal of Differential Equations 》《Canadian Journal of Mathematics》《Theoretical Population Biology》《Stochastic Processes and their Applications》《Journal of Theoretical Probability 》等國際頂級概率刊物發表論文80余篇。