We consider the one-dimensional anharmonic oscillator P and we study the qualitative behaviour of its eigenvalues; in particular, we show how the sign of its eigenvalues depends on the coefficients of P. We applied our results to the study of hypoellipticity and of a priori estimates for certain non-transversally elliptic operators.
Titolo: | On the spectrum of an anharmonic oscillator | |
Autore/i: | MUGHETTI, MARCO | |
Autore/i Unibo: | ||
Anno: | 2015 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1090/S0002-9947-2014-05896-0 | |
Abstract: | We consider the one-dimensional anharmonic oscillator P and we study the qualitative behaviour of its eigenvalues; in particular, we show how the sign of its eigenvalues depends on the coefficients of P. We applied our results to the study of hypoellipticity and of a priori estimates for certain non-transversally elliptic operators. | |
Data stato definitivo: | 2015-12-14T10:12:47Z | |
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