ON THE COLLISION LOCAL TIME OF BIFRACTIONAL BROWNIAN MOTIONS
ON THE COLLISION LOCAL TIME OF BIFRACTIONAL BROWNIAN MOTIONS
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DOI:
10.1142/s0219493709002749
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发表时间:
2009-09
影响因子:
1.1
通讯作者:
Litan Yan;Junfeng Liu;Chao Chen
中科院分区:
文献类型:
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作者:
Litan Yan;Junfeng Liu;Chao Chen
Let , i = 1,2 be two independent bifractional Brownian motions of dimension 1, with indices Hi ∈ (0, 1) and Ki ∈ (0, 1]. We investigate the collision local time of bifractional Brownian motions where δ denotes the Dirac delta function at zero. We show that lT exists in L2, and it is Holder continuous of order 1 - min {H1K1,H2K2}, and furthermore, it is also smooth in the sense of Meyer–Watanabe.