Norm-attaining polynomials and differentiability.

We give a polynomial version of Shmul'yan's Test, characterizing the polynomials that strongly attain their norm as those at which the norm is Frechet differentiable: We also characterize the Gateaux differentiability of the norm. Finally we study those properties for some classical Banach...

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Detalhes bibliográficos
Autor: Ferrera Cuesta, Juan
Tipo de documento: artigo
Data de publicação:2002
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositório:Docta Complutense
Idioma:inglês
OAI Identifier:oai:docta.ucm.es:20.500.14352/57243
Acesso em linha:https://hdl.handle.net/20.500.14352/57243
Access Level:Acceso aberto
Palavra-chave:517.986.6
517.518.45
Banach spaces
Polynomials
Norm differentiability
Shmul'yans's test
Strongly attains its norm
Fréchet differentiability
Gâteaux differentiability
Análisis matemático
1202 Análisis y Análisis Funcional
Descrição
Resumo:We give a polynomial version of Shmul'yan's Test, characterizing the polynomials that strongly attain their norm as those at which the norm is Frechet differentiable: We also characterize the Gateaux differentiability of the norm. Finally we study those properties for some classical Banach spaces.