Matrix summability methods and weakly unconditionally Cauchy series.

We study new sequence spaces determined by series in normed spaces and a matrix summability method, giving new characterizations of weakly unconditionally Cauchy series. We obtain characterizations for the completeness of a normed space, and a version of the Orlicz-Pettis theorem via matrix summabil...

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Detalhes bibliográficos
Autores: Aizpuru, A., Pérez Eslava, C., Seoane Sepúlveda, Juan Benigno
Formato: artículo
Fecha de publicación:2009
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/43665
Acesso em linha:https://hdl.handle.net/20.500.14352/43665
Access Level:acceso abierto
Palavra-chave:517.98
Matrix summability
Weakly unconditionally Cauchy series
Orlicz-Pettis theorem
Análisis funcional y teoría de operadores
Descrição
Resumo:We study new sequence spaces determined by series in normed spaces and a matrix summability method, giving new characterizations of weakly unconditionally Cauchy series. We obtain characterizations for the completeness of a normed space, and a version of the Orlicz-Pettis theorem via matrix summability methods is also proved.