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Scaling limit of a long-range random walk in time-correlated random environment

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arxiv 2210.01009 v3 pith:EAE3WATS submitted 2022-10-03 math.PR

classification math.PR
keywords randomlong-rangeenvironmentsolutionspacetimewalkcolored
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abstract

This paper concerns a long-range random walk in random environment in dimension $1+1$, where the environmental disorder is independent in space but has long-range correlations in time. We prove that two types of rescaled partition functions converge weakly to the Stratonovich solution and the It\^o-Skorohod solution respectively of a fractional stochastic heat equation with multiplicative Gaussian noise which is white in space and colored in time.

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