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Listar por palabra clave "Norm attaining"

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Listar por palabra clave "Norm attaining"

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    A Bishop-Phelps-Bollobas Type Theorem for uniform algegras 
    Cascales, B.; Guirao Sánchez, Antonio José; Kadets, V. (Elsevier, 2013-06-20)
    This paper is devoted to showing that Asplund operators with range in a uniform Banach algebra have the Bishop¿Phelps¿Bollobas property, i.e., they are approximated by norm attaining Asplund operators at the same time ...
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    Gamma-flatness and Bishop-Phelps-Bollobas type theorems for operators 
    Cascales Salinas, Bernardo; Guirao Sánchez, Antonio José; Kadets, Vladimir; Soloviova, Mariia (Elsevier, 2018)
    [EN] The Bishop-Phelps-Bollobas property deals with simultaneous approximation of an operator T and a vector x at which T nearly attains its norm by an operator T-o and a vector x(o), respectively, such that T-o attains ...
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    Norm Attaining Elements of the Ball Algebra H-infinity(B-N) 
    Aron, Richard M.; Bonet Solves, José Antonio; Maestre, Manuel (Springer-Verlag, 2024-03)
    [EN] Let B(N )be the Euclidean ball of C-N. The space H-infinity(B-N) of bounded holomorphic functions on B-N is known to have a predual, denoted by G(infinity)(B-N). We study the functions in H-infinity(B-N) that attain ...
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    The Bishop-Phelps-Bollobás property for numerical radius in l(1)(C) 
    Guirao Sánchez, Antonio José; Kozhushkina, Olena (Polskiej Akademii Nauk, Instytut Matematyczny (Polish Academy of Sciences, Institute of Mathematics), 2013-07)
    We show that the set of bounded linear operators from X to X admits a Bishop Phelps Bollobas type theorem for numerical radius whenever X is l(1)(C) or c(0)(C). As an essential tool we provide two constructive versions of ...