Supported by the National Natural Science Foundation of China ( 11061032,30973586);the Young Fund of Northwest University for Nationalities (X2009-003)
设X(t)(t∈R^N)是d维分式Browa运动,本文研究X(t)的k重点集的Hausdorff维数。证明了:若P_1,…,P_k是R^N中内部不空的紧集,P=multiply from i=1 to k P_i, L_k(P)={x∈R^d|存在(t_1,…,t_k)∈P,使X(t_1)=…=X(t_k)=x},则当N≤ad,Nk>(k-1...