THE INTERSECTION AND THE POLAR FUNCTIONS OF NONDEGENERATE DIFFUSION PROCESSES
非退化扩散过程的相交性与极函数

in this paper, under resonable conditions, we have proved that any two independent one dimensional diffusion processes are intersecting and the time set of the intersection has Hausdorff dimension . Furthermore, we discuss the polar functions for diffusion processes.Under resonable conditions, results resembling those of Brownian motion are obtained.