Stochastic integration with respect to local time of the Brownian sheet and regularising properties of Brownian sheet paths
arXiv (Cornell University)(2021)
摘要
In this work, we generalise the stochastic local time space integration introduced in \cite{Ei00} to the case of Brownian sheet. %We develop a stochastic local time-space calculus with respect to the Brownian sheet. This allows us to prove a generalised two-parameter It\^o formula and derive Davie type inequalities for the Brownian sheet. Such estimates are useful to obtain regularity bounds for some averaging type operators along Brownian sheet curves.
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关键词
stochastic integration,brownian sheet,local time
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