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Concentration of measure on product spaces with applications to Markov processes

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Blower G., Bolley F.

Studia Mathematica

2006

tom 175

nr 1

47-72

For a stochastic process with state space some Polish space, this paper gives sufficient conditions on the initial and conditional distributions for the joint law to satisfy Gaussian concentration inequalities and transportation inequalities. In the case of the Euclidean space $ℝ^{m}$, there are sufficient conditions for the joint law to satisfy a logarithmic Sobolev inequality. In several cases, the constants obtained are of optimal order of growth with respect to the number of random variables, or are independent of this number. These results extend results known for mutually independent random variables to weakly dependent random variables under Dobrushin-Shlosman type conditions. The paper also contains applications to Markov processes including the ARMA process.

Ograniczanie wyników

1 Studia Mathematica

1 Blower G.

1 Bolley F.

1 2006

Wyniki wyszukiwania

Concentration of measure on product spaces with applications to Markov processes