報告人：蒲飛 【猶他大學】
時 間：2019-06-03 10:30-11:30
地 點：衛(wèi)津路校區(qū)6號樓111教
報告人簡介
猶他大學博士
報告內容介紹
The main topic of this talk is the study of hitting probabilities for solutions to systems of stochastic heat equations. We establish an optimal lower bound on hitting probabilities in the non-Gaussian case, which is as sharp as that in the Gaussian case. This is achieved by a sharp Gaussian-type upper bound on the two-point probability density function of the solution. Motivated by the study of upper bounds on the hitting probabilities, we establish a smoothness property and a Gaussian-type upper bound for the probability density function of the supremum of the solution over a space-time rectangle touching the t = 0 axis. This talk is based on joint work with Robert C. Dalang.