Representation of Markov chains by random maps: existence and regularity conditions

Fuente: arXiv
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Autores principales: Jost, Jürgen, Kell, Martin, Rodrigues, Christian S.
Formato: Preprint
Publicado: 2012
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author Jost, Jürgen
Kell, Martin
Rodrigues, Christian S.
author_facet Jost, Jürgen
Kell, Martin
Rodrigues, Christian S.
contents We systematically investigate the problem of representing Markov chains by families of random maps, and which regularity of these maps can be achieved depending on the properties of the probability measures. Our key idea is to use techniques from optimal transport to select optimal such maps. Optimal transport theory also tells us how convexity properties of the supports of the measures translate into regularity properties of the maps via Legendre transforms. Thus, from this scheme, we cannot only deduce the representation by measurable random maps, but we can also obtain conditions for the representation by continuous random maps. Finally, we present conditions for the representation of Markov chain by random diffeomorphisms.
format Preprint
id arxiv_https___arxiv_org_abs_1207_5003
institution arXiv
publishDate 2012
record_format arxiv
spellingShingle Representation of Markov chains by random maps: existence and regularity conditions
Jost, Jürgen
Kell, Martin
Rodrigues, Christian S.
Dynamical Systems
Differential Geometry
Probability
37C40, 49K45, 49N60 (Primary), 37H10, 37C05 (Secondary)
We systematically investigate the problem of representing Markov chains by families of random maps, and which regularity of these maps can be achieved depending on the properties of the probability measures. Our key idea is to use techniques from optimal transport to select optimal such maps. Optimal transport theory also tells us how convexity properties of the supports of the measures translate into regularity properties of the maps via Legendre transforms. Thus, from this scheme, we cannot only deduce the representation by measurable random maps, but we can also obtain conditions for the representation by continuous random maps. Finally, we present conditions for the representation of Markov chain by random diffeomorphisms.
title Representation of Markov chains by random maps: existence and regularity conditions
topic Dynamical Systems
Differential Geometry
Probability
37C40, 49K45, 49N60 (Primary), 37H10, 37C05 (Secondary)
url https://arxiv.org/abs/1207.5003