Two-dimensional random interlacements and late points for random walks

Francis Comets; Serguei Popov; Marina Vachkovskaia

doi:10.1007/s00220-015-2531-5

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arXiv · 1502.03470

Two-dimensional random interlacements and late points for random walks

Francis Comets·Serguei Popov·Marina Vachkovskaia

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Abstract

We define the model of two-dimensional random interlacements using simple random walk trajectories conditioned on never hitting the origin, and then obtain some properties of this model. Also, for random walk on a large torus conditioned on not hitting the origin up to some time proportional to the mean cover time, we show that the law of the vacant set around the origin is close to that of random interlacements at the corresponding level. Thus, this new model provides a way to understand the structure of the set of late points of the covering process from a microscopic point of view.

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Francis Comets, Serguei Popov, Marina Vachkovskaia. 2015-11-02. Two-dimensional random interlacements and late points for random walks. https://doi.org/10.1007/s00220-015-2531-5

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