Some uniqueness results for degenerate elliptic operators in two variables
Ferruccio Colombini, Daniele Del Santo (1991)
Rendiconti del Seminario Matematico della Università di Padova
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Ferruccio Colombini, Daniele Del Santo (1991)
Rendiconti del Seminario Matematico della Università di Padova
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Daniele Del Santo (1989)
Rendiconti del Seminario Matematico della Università di Padova
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M. Fabian (1995)
Studia Mathematica
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Let ℛ denote some kind of rotundity, e.g., the uniform rotundity. Let X admit an ℛ-norm and let Y be a reflexive subspace of X with some ℛ-norm ∥·∥. Then we are able to extend ∥·∥ from Y to an ℛ-norm on X.
P. Mankiewicz (1984)
Studia Mathematica
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Luis A Caffarelli, Jean-Michel Roquejoffre (2002)
Annales de l'I.H.P. Analyse non linéaire
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Marcello D’Abbicco, Giovanni Taglialatela (2009)
Annales de la faculté des sciences de Toulouse Mathématiques
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We consider hyperbolic systems with time dependent coefficients and size or . We give some sufficient conditions in order the Cauchy Problem to be well-posed in and in Gevrey spaces.
Björn Birnir, Gustavo Ponce, Nils Svanstedt (1996)
Annales de l'I.H.P. Analyse non linéaire
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