| HAL : hal-00321069, version 1 |
| arXiv : 0809.2195 |
| Fiche détaillée | Récupérer au format |
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| Versions disponibles : | v1 (12-09-2008) | v2 (11-09-2009) | v3 (31-05-2010) | v4 (15-09-2010) |
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| Limit law of the local time for Brox's diffusion |
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| Pierre Andreoletti 1Roland Diel 1 |
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| (12/09/2008) |
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| We consider Brox's model: a one-dimensional diffusion in a Brownian environment. We show the weak convergence of the normalized local time process $(L(x+m_{\log t},t)/t,x\in I \subset \R)$, centered at the coordinate of the bottom of the deepest valley $m_{\log t}$ reached by the process before time $t$ to a functional of two independent 3-dimensional Bessel processes. We apply that result to get the limit law of the supremum of the normalized local time. These results are discussed and compared to the discrete time and space analogous model whose same questions have been solved recently by N. Ganter, Y. Peres and Z. Shi. |
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| 1 : | Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO) |
| Université d'Orléans – CNRS : UMR7349 | |
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| Domaine | : | Mathématiques/Probabilités |
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| Diffusion process in Brownian environment – Local time |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00321069, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00321069 | |
| oai:hal.archives-ouvertes.fr:hal-00321069 | |
| Contributeur : Roland Diel | |
| Soumis le : Vendredi 12 Septembre 2008, 11:32:55 | |
| Dernière modification le : Vendredi 12 Septembre 2008, 14:23:42 | |