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Bessaga, C. ; Hernando Boto, Beatriz ; Martín Peinador, Elena | Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza | 1997This is a small book (48 pages) that contains a revised and extended version of the notes of seminar lectures given by Bessaga. The authors present a nice introduction to nuclear spaces (with all necessary preliminaries) based on Kolmogorov diam[...]texto impreso
Tauberian operators between Banach spaces were introduced by N. Kalton and A. Wilansky [Proc. Amer. Math. Soc. 57 (1976), no. 2, 251–255;] as those operators T:X?Y whose second conjugate satisfies (T **) ?1 Y?X . Note that ker(T **)?X is a nec[...]texto impreso
Operators from a Banach space X into a Banach space Y weaker than isomorphisms and, nevertheless, preserving some isomorphic property, i.e. such that a good property of Y lifts to X, have been studied by many authors. This note is also devoted t[...]
