摘要
本文研究非退化多维扩散过程的极性。
In this paper. we study the polarity of diffusion processes X t: Let E(0,∞),FR N } be compact sets, a sufficient condition for P(X(E)∩F≠)=0 and P(X -1 (F)≠)=0 is obtained.
关键词
扩散过程
维纳过程
充分条件
极性
diffusion process. Brown motion. martingale. Hausdroff dimension.