Trapping planar Brownian motion in a non circular trap

被引:0
|
作者
Schenker, Jeffrey [1 ]
机构
[1] Michigan State Univ, Dept Math, 619 Red Cedar Rd, E Lansing, MI 48824 USA
基金
美国国家科学基金会;
关键词
Brownian motion; Green's function; Conformal radius; Hitting probabilities; HEAT;
D O I
10.30757/ALEA.v15-10
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Brownian motion in the plane in the presence of a "trap" at which motion is stopped is studied. If the trap T is a connected compact set, it is shown that the probability for planar Brownian motion to hit this set before a given time t is well approximated even at short times by the probability that Brownian motion hits a disk of radius r(T), equal to the conformal radius of the trap T.
引用
收藏
页码:213 / 231
页数:19
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