Abstract
Consider a random walk in an irreducible random environment on the positive integers. We prove that the annealed law of the random walk determines uniquely the law of the random environment. An application to linearly edge-reinforced random walk is given.
Highlights
Introduction and resultsRandom walk in a random environment
We prove that the annealed law of the random walk determines uniquely the law of the random environment
We say that (X t )t∈ 0 is a random walk in a random environment on 0 if there exists a probability measure on [0, 1] such that
Summary
Introduction and resultsRandom walk in a random environment. Let G = ( 0, E) be the graph with vertex set 0 and set of undirected edges E = {{n, n + 1}, n ∈ 0}. We consider random walk in a random environment on G defined as follows: Let Ω0 ⊆ We say that (X t )t∈ 0 is a random walk in a random environment on 0 if there exists a probability measure on [0, 1] such that
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