We study the hypoellipticity of (pseudo)differential operators in one variable when a positivity assumption is made on a suitable principal part. We prove that the found Gevrey regularity is optimal.
Titolo: | Analytic and Gevrey Hypoellipticity for a Class of Pseudodifferential Operators in One Variable | |
Autore/i: | BOVE, ANTONIO; MUGHETTI, MARCO | |
Autore/i Unibo: | ||
Anno: | 2013 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jde.2013.04.030 | |
Abstract: | We study the hypoellipticity of (pseudo)differential operators in one variable when a positivity assumption is made on a suitable principal part. We prove that the found Gevrey regularity is optimal. | |
Data prodotto definitivo in UGOV: | 2013-05-29 22:33:50 | |
Data stato definitivo: | 2016-01-13T16:06:45Z | |
Appare nelle tipologie: | 1.01 Articolo in rivista |
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