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Spectral Analysis of Markov Kernels and Application to the Convergence Rate Of Discrete Random Walks

Published online by Cambridge University Press:  22 February 2016

Loïc Hervé*
Affiliation:
INSA de Rennes
James Ledoux*
Affiliation:
INSA de Rennes
*
Postal address: INSA de Rennes, IRMAR CNRS-UMR 6625, 20 avenue des Buttes de Coesmes, CS 70 839, 35708 Rennes cedex 7, France.
Postal address: INSA de Rennes, IRMAR CNRS-UMR 6625, 20 avenue des Buttes de Coesmes, CS 70 839, 35708 Rennes cedex 7, France.
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Abstract

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Let {Xn}n∈ℕ be a Markov chain on a measurable space with transition kernel P, and let The Markov kernel P is here considered as a linear bounded operator on the weighted-supremum space associated with V. Then the combination of quasicompactness arguments with precise analysis of eigenelements of P allows us to estimate the geometric rate of convergence ρV(P) of {Xn}n∈ℕ to its invariant probability measure in operator norm on A general procedure to compute ρV(P) for discrete Markov random walks with identically distributed bounded increments is specified.

Type
General Applied Probability
Copyright
© Applied Probability Trust 

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