Brox diffusion;
random media;
asymptotic behavior;
fractional Brownian motion;
D O I:
10.1214/24-ECP623
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:
We study the short-time asymptotic behavior of the Brox diffusion. While the first order limit is a Brownian motion as in the standard diffusion cases, we show that the higher order terms have different convergence rates and limit processes that reflect the irregularity of the Brox diffusion.