学术报告(陈振庆 8.28)

Approximation of Liouville Brownian motion

发布人:杨晓静 发布日期:2023-08-25
主题
Approximation of Liouville Brownian motion
活动时间
-
活动地址
数学楼 415
主讲人
陈振庆 教授 华盛顿大学(西雅图)
主持人
巫静

 Liouville Brownian motion was introduced as a canonical diffusion process under Liouville quantum gravity. It is constructed as a time change of 2-dimensional Brownian motion by the continuous additive functional associated with a Liouville measure, through a regularizing approximation procedure of the Gaussian free field. In this talk, we are concerned with the question whether one can construct Liouville Brownian motion directly from the Liouville measure. We will present a discrete approximation scheme that in fact works for any time-changed Brownian motion by a Revuz measure that has full quasi support.  Based on joint work with Yang Yu.