Differential operators with non dense domain
G. Da Prato, E. Sinestrari (1987)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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G. Da Prato, E. Sinestrari (1987)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Joao-Paulo Dias, Mário Figueira (1991)
Revista Matemática de la Universidad Complutense de Madrid
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In this paper we prove the existence of a weak solution for a given semilinear singular real hyperbolic system.
Hamid Elouardi, François De Thélin (1989)
Publicacions Matemàtiques
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Fernando Cobos, Pedro Fernandez-Martinez (1992)
Studia Mathematica
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We prove a reiteration theorem for interpolationmethods defined by means of polygons, and a Wolff theorem for the case when the polygon has 3 or 4 vertices. In particular, we establish a Wolff theorem for Fernandez' spaces, which settles a problem left over in [5].
Shen-Chi Tang (1965)
Collectanea Mathematica
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Tsai, Chester E. (1967)
Portugaliae mathematica
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Abdelaziz Rhandi (1997)
Studia Mathematica
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Using extrapolation spaces introduced by Da Prato-Grisvard and Nagel we prove a non-autonomous perturbation theorem for Hille-Yosida operators. The abstract result is applied to non-autonomous retarded partial differential equations.
Rafael Labarca (1995)
Annales scientifiques de l'École Normale Supérieure
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