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arXiv 1408.0189math.PR
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高维多分数布朗运动的局部时:一种白噪声方法

Local times for multifractional Brownian motion in higher dimensions: A white noise approach

Wolfgang Bock, Jose Luis da Silva, Herry Pribawanto Suryawan

摘要:

我们提出的多重分数布朗(MBM)本地时间在高维的扩展,在Wick权力的白噪声(或多个Wiener积分)。如果减去适当数量的核,则它们在广义白噪声泛函的意义下存在。此外,我们还证明了正则化截断局部时的收敛性的意义下的Hida分布的mBM。

英文摘要:

We present the expansion of the multifractional Brownian (mBm) local time in higher dimensions, in terms of Wick powers of white noises (or multiple Wiener integrals). If a suitable number of kernels is subtracted, they exist in the sense of generalized white noise functionals. Moreover we show the convergence of the regularized truncated local times for mBm in the sense of Hida distributions.

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