| HAL: hal-00474543, version 2 |
| arXiv: 1004.3456 |
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| Revista Matemática Iberoamericana (2012) http://rmi.rsme.es/index.php |
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| Available versions: | v2 (2010-06-24) |
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| Weighted Nash Inequalities |
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| Dominique Bakry 1, 2François Bolley 3 |
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| (2012-01-11) |
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| Nash or Sobolev inequalities are known to be equivalent to ultracontractive properties of Markov semigroups, hence to uniform bounds on their kernel densities. In this work we present a simple and extremely general method, based on weighted Nash inequalities, to obtain non-uniform bounds on the kernel densities. Such bounds imply a control on the trace or the Hilbert-Schmidt norm of the heat kernels. We illustrate the method on the heat kernel on $\dR$ naturally associated with the measure with density $C_a\exp(-|x|^a)$, with $1 |
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| 1: | Institut Universitaire de France (IUF) |
| Ministère de l'Enseignement Supérieur et de la Recherche Scientifique | |
| 2: | Institut de Mathématiques de Toulouse (IMT) |
| Université Paul Sabatier [UPS] - Toulouse III – Université Toulouse le Mirail - Toulouse II – Université des Sciences Sociales - Toulouse I – Institut National des Sciences Appliquées (INSA) - Toulouse – CNRS : UMR5219 | |
| 3: | CEntre de REcherches en MAthématiques de la DEcision (CEREMADE) |
| CNRS : UMR7534 – Université Paris IX - Paris Dauphine | |
| 4: | Institut Camille Jordan (ICJ) |
| CNRS : UMR5208 – Université Claude Bernard - Lyon I – Ecole Centrale de Lyon – Institut National des Sciences Appliquées (INSA) - Lyon | |
| 5: | Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO) |
| Université d'Orléans – CNRS : UMR7349 | |
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| Subject | : | Mathematics/Probability |
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| Attached file list to this document: | ||||||||||
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| hal-00474543, version 2 | |
| http://hal.archives-ouvertes.fr/hal-00474543 | |
| oai:hal.archives-ouvertes.fr:hal-00474543 | |
| From: Ivan Gentil | |
| Submitted on: Thursday, 24 June 2010 11:04:25 | |
| Updated on: Wednesday, 11 January 2012 20:53:37 | |