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## Studia Mathematica

2006 | 175 | 1 | 47-72
Tytuł artykułu

### Concentration of measure on product spaces with applications to Markov processes

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EN
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.
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Tom
Numer
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47-72
Opis fizyczny
Daty
wydano
2006
Twórcy
autor
• Department of Mathematics and Statistics, Lancaster University, Lancaster LA1 4YF, UK
autor
• École Normale Supérieure de Lyon, Umpa, 46 allée d'Italie, F-69364 Lyon Cedex 07, France
• Institut de mathématiques - LSP, Université Paul Sabatier, F-31062 Toulouse Cedex 9, France
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