We prove a global Harnack inequality for a class of degenerate evolution operators by using repeatedly an invariant local Harnack inequality. As a consequence we obtain an accurate Gaussian lower bound for the fundamental solution for some meaningful families of degenerate operators.
Titolo: | Harnack inequalities and Gaussian estimates for a class of hypoelliptic operators |
Autore/i: | PASCUCCI, ANDREA; S. Polidoro |
Autore/i Unibo: | |
Anno: | 2006 |
Rivista: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1090/S0002-9947-06-04050-5 |
Abstract: | We prove a global Harnack inequality for a class of degenerate evolution operators by using repeatedly an invariant local Harnack inequality. As a consequence we obtain an accurate Gaussian lower bound for the fundamental solution for some meaningful families of degenerate operators. |
Data prodotto definitivo in UGOV: | 2006-08-22 16:30:26 |
Data stato definitivo: | 2016-07-05T11:59:26Z |
Appare nelle tipologie: | 1.01 Articolo in rivista |
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