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Electronic Journal of Probability
Article . 2022 . Peer-reviewed
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zbMATH Open
Article . 2022
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https://dx.doi.org/10.48550/ar...
Article . 2022
License: CC BY
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Conservative random walk

Authors: Engländer, János; Volkov, Stanislav;

Conservative random walk

Abstract

Recently, in ["The coin-turning walk and its scaling limit", Electronic Journal of Probability, 25 (2020)], the ``coin-turning walk'' was introduced on ${\mathbb Z}$. It is a non-Markovian process where the steps form a (possibly) time-inhomogeneous Markov chain. In this article, we follow up the investigation by introducing analogous processes in ${\mathbb Z}^d$, $d\ge 2$: at time $n$ the direction of the process is ``updated'' with probability $p_n$; otherwise the next step repeats the previous one. We study some of the fundamental properties of these walks, such as transience/recurrence and scaling limits. Our results complement previous ones in the literature about ``correlated'' (or ``Newtonian'') and ``persistent'' random walks.

32 pages, some figures, to appear in EJP

Related Organizations
Keywords

correlated random walk, 60G50, 60F05, 60J10, recurrence, Sums of independent random variables; random walks, transience, Probability (math.PR), Central limit and other weak theorems, invariance principle, coin-turning, conservative random walk, scaling limits, Markov chains (discrete-time Markov processes on discrete state spaces), random walk, cooling dynamics, persistent random walk, FOS: Mathematics, time-inhomogeneous Markov-processes, Newtonian random walk, Mathematics - Probability, heating dynamics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold