http://www.cnr.it/ontology/cnr/individuo/prodotto/ID146271
Reaching the best possible rate of convergence to equilibrium for solutions of Kac's equation via central limit theorem: 1. Rate of convergence (Curatela)
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- Label
- Reaching the best possible rate of convergence to equilibrium for solutions of Kac's equation via central limit theorem: 1. Rate of convergence (Curatela) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1214/08-AAP538 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#riferimentiBibliografici
- Pubblicazione IMATI nr. 16PV07/16/11, pp. 1-37. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autoriCuratela
- Dolera E., Gabetta E., Regazzini E. (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatori
- Dolera E.; Gabetta E.; Regazzini E. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Università di Modena e Reggio Emilia, Università di Pavia (literal)
- Titolo
- Reaching the best possible rate of convergence to equilibrium for solutions of Kac's equation via central limit theorem: 1. Rate of convergence (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#tipoDiCuratela
- Abstract
- Let f(., t) be the probability density function which represents the solution of Kac's equation at time t, with initial data f_0, and let g_? be the Gaussian density with zero mean and variance ?^2, ?^22 being the value of the second moment of f_0. This is the first study which proves that the total variation distance between f(?, t) and g? goes to zero, as t->+?, with an exponential rate equal to -1/4. In the present paper, this fact is proved on the sole assumption that f_0 has finite fourth moment and its Fourier transform ?_0 satisfies |?_0(?)|=o(|?|-p) as |?|->+?, for some p>0. These hypotheses are definitely weaker than those considered so far in the state-of-the-art literature, which in any case, obtains less precise rates. (literal)
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