報(bào)告承辦單位：數(shù)學(xué)與統(tǒng)計(jì)學(xué)院
報(bào)告題目：Boundarybehavior for simple exchangeable fragmentation-Coagulation process in critical slow regime.
報(bào)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(bào)告人姓名：周曉文
報(bào)告人所在單位：Concordia University
報(bào)告人職稱：教授
報(bào)告時(shí)間：2025年6月4日（星期三）上午10:00-11:00
報(bào)告地點(diǎn)：理科樓A419
報(bào)告人簡(jiǎn)介：周曉文教授，1999 年在美國(guó)加州大學(xué)Berkeley分校獲統(tǒng)計(jì)學(xué)博士學(xué)位。現(xiàn)任加拿大Concordia 大學(xué)數(shù)學(xué)與統(tǒng)計(jì)系終身教授。長(zhǎng)期從事概率論與隨機(jī)過(guò)程理論的研究，主要研究興趣包括測(cè)度值隨機(jī)過(guò)程，Levy過(guò)程及其在種群遺傳學(xué)和風(fēng)險(xiǎn)理論中的應(yīng)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(guó)際頂級(jí)概率刊物發(fā)表論文80余篇。