Título inglés |
On Tauberian and co-Tauberian operators. |
Título español |
Sobre los operadores tauberianos y cotauberianos. |
Autor/es |
Dutta, Sudipta ; Fonf, Vladimir P. |
Organización |
Dep. Math. Ben Gurion Univ., Beer-Sheva, Israel |
Revista |
0213-8743 |
Publicación |
2006, 21 (1): 27-39, 17 Ref. |
Tipo de documento |
articulo |
Idioma |
Inglés |
Resumen inglés |
We show that a Banach space X has an infinite dimensional reflexive subspace (quotient) if and only if there exist a Banach space Z and a non-isomorphic
one-to-one (dense range) Tauberian (co-Tauberian) operator form X to Z (Z to X). We also give necessary and sufficient condition for the existence of a Tauberian operator from a separable Banach space to c0 which
in turn generalizes a result of Johnson and Rosenthal. Another application
of our result shows that if X** is separable, then there exists a renorming of X for which, X is essentially the only subspace contained in the set of norm attaining functionals on X*. |
Clasificación UNESCO |
120203 |
Palabras clave español |
Geometría y estructura de espacios de Banach ; Operadores tauberianos ; Inmersiones |
Código MathReviews |
MR2258344 |
Código Z-Math |
Zbl 1112.46006 |
Acceso al artículo completo |