A 'non-stopping' time with the optional-stopping property

被引:10
|
作者
Williams, D [1 ]
机构
[1] Univ Coll Swansea, Dept Math, Swansea SA2 8PP, W Glam, Wales
关键词
D O I
10.1112/S0024609302001303
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
An example is given of a random time rho associated with Brownian motion such that rho is not a stopping time but EMrho = EMo for every uniformly integrable martingale M.
引用
收藏
页码:610 / 612
页数:3
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