Abstract
The Half-Plane Half-Comb walk is a random walk on the plane, when we have a square lattice on the upper half-plane and a comb structure on the lower half-plane, i.e., horizontal lines below the x-axis are removed. We prove that the probability that this walk returns to the origin in 2N steps is asymptotically equal to \(2/(\pi N).\) As a consequence, we prove strong laws and a limit distribution for the local time.
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We wish to thank the referee of our submission for carefully reading our manuscript and for making a number of helpful suggestions which certainly improved the presentation of this paper.
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Csáki, E., Földes, A. On the Local Time of the Half-Plane Half-Comb Walk. J Theor Probab 35, 1247–1261 (2022). https://doi.org/10.1007/s10959-020-01065-2
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DOI: https://doi.org/10.1007/s10959-020-01065-2