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Differences between Lyapunov exponents for the simple random walk in Bernoulli potentials

Probability 2022-05-31 v1

Abstract

We consider the simple random walk on the dd-dimensional lattice Zd\mathbb{Z}^d (d1d \geq 1), traveling in potentials which are Bernoulli distributed. The so-called Lyapunov exponent describes the cost of traveling for the simple random walk in the potential, and it is known that the Lyapunov exponent is strictly monotone in the parameter of the Bernoulli distribution. Hence, the aim of this paper is to investigate the effect of the potential on the Lyapunov exponent more precisely, and we derive some Lipschitz-type estimates for the difference between the Lyapunov exponents.

Cite

@article{arxiv.2205.14356,
  title  = {Differences between Lyapunov exponents for the simple random walk in Bernoulli potentials},
  author = {Naoki Kubota},
  journal= {arXiv preprint arXiv:2205.14356},
  year   = {2022}
}

Comments

23 pages

R2 v1 2026-06-24T11:31:42.835Z