On non-local ergodic Jacobi semigroups: spectral theory, convergence-to-equilibrium and contractivity

نویسندگان

چکیده

Dans cet article, nous introduisons et étudions des opérateurs de Jacobi non locaux, qui généralisent les classiques (locaux). Nous montrons que ces s’étendent aux générateurs semi-groupes Markov ergodiques avec mesures probabilité invariantes uniques leurs propriétés spectrales convergence. En particulier, dérivons un développement en série du semi-groupe termes polynômes explicitement définis, orthogonaux classiques. De plus, donnons une caractérisation complète spectre générateur auto-adjoint. la convergence variance est hypocoercive constantes explicites, ce fournit généralisation naturelle l’estimation donnée par le trou spectral. Après temps préchauffage aléatoire, décroît également manière exponentielle entropie à fois hypercontractif ultracontractif. Nos preuves s’articulent autour d’identités commutation, appelées relations d’entrelacement, entre locaux objets servant points référence pour transfert cas local au local.

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ژورنال

عنوان ژورنال: Journal de l'E?cole polytechnique

سال: 2021

ISSN: ['2429-7100', '2270-518X']

DOI: https://doi.org/10.5802/jep.148