Some remarks on interpolation of bilinear operators.
D. Staszak (1992)
Collectanea Mathematica
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D. Staszak (1992)
Collectanea Mathematica
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E.I. Bereznoi, Mieczyslaw Mastylo (1990)
Publicacions Matemàtiques
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The problem of coincidence of the interpolation spaces obtained by use of the interpolation method of Gustavsson-Peetre generated by (parameters) quasi-concave functions is investigated. It is shown that a restriction of this method to the class of all non-trivial Banach couples gives different interpolation spaces whenever two different parameters satisfying some conditions are used.
Jan Gustavsson (1982)
Studia Mathematica
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Yoram Sagher (1972)
Studia Mathematica
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Oscar Blasco, Alberto Ruiz, Luis Vega (1999)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Gunnar Sparr (1978)
Studia Mathematica
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Fernando Cobos Díaz (1989)
Revista Matemática de la Universidad Complutense de Madrid
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The behavior of compactness under real interpolation real is discussed. Classical results due to Krasnoselskii, Lions-Peetre, Persson, and Hayakawa are described, as well as others obtained very recently by Edmunds, Potter, Fernández, and the author.
Maria Carro (1994)
Studia Mathematica
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We develop a new method of real interpolation for infinite families of Banach spaces that covers the methods of Lions-Peetre, Sparr for N spaces, Fernández for spaces and the recent method of Cobos-Peetre.
Fernando Cobos, Pedro Fernández-Martínez, Antón Martínez (1999)
Studia Mathematica
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We investigate the behaviour of the measure of non-compactness of an operator under real interpolation. Our results refer to general Banach couples. An application to the essential spectral radius of interpolated operators is also given.
María J. Carro (1994)
Collectanea Mathematica
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