Two Characterizations of Super-Reflexive Banach Spaces by the Behaviour of Differences of Convex Functions

A function defined on a Banach space X is called Δ-convex if it can be represented as a difference of two continuous convex functions. In this work we study the relationship between some geometrical properties of a Banach space X and the behaviour of the class of all Δ-convex functions defined on it...

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Detalhes bibliográficos
Autor: Cepedello Boiso, Manuel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2002
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/178562
Acesso em linha:https://hdl.handle.net/11441/178562
https://doi.org/10.1006/jfan.2001.3854
Access Level:acceso abierto
Palavra-chave:super-reflexive Banach spaces
Convex functions
Super-reflexive Banach spaces
Descrição
Resumo:A function defined on a Banach space X is called Δ-convex if it can be represented as a difference of two continuous convex functions. In this work we study the relationship between some geometrical properties of a Banach space X and the behaviour of the class of all Δ-convex functions defined on it. More precisely, we provide two new characterizations of super-reflexivity in terms Δ-convex functions.