Sobre la estructura de los espacios de operadores de Lorentz.
Sobre la topología débil en componentes del ideal de los operadores p-compactos de Saphar con 1 < p < ∞.
Sobre los espacios Frechet-Schwartz de dimensión diametral máxima.
Some density theorems for Toeplitz operators on Bergman spaces
Some extensions on the Sadovskii functor.
Some generalizations of Kadison's theorem: a survey.
Motivated by a well-known result of Kadison that describes surjective isometries of the space of compact and the space of bounded operators on a Hilbert space, in this paper we investigate the structure of surjective isometries on the space of compact and on the space of bounded operators between Banach spaces. We give an example to show that isometries in general need not be of the canonical form. As an application of our study of the group of isometries, we consider the algebraic reflexivity of...
Some linear topological properties of the spaces of operators on Hilbert space
Some permanence properties of locally convex spaces defined by norm space ideals of operators
Some properties of prereflexive subspaces of operators.
Some Relations Between s-Numbers of Operators on Banach Spaces.
Some remarks on the uniform approximation property in Banach spaces
Some results about absolute summability of operators in Banach spaces.
In order to study the absolute summability of an operator T we consider the set ST = {{xn} | ∑||Txn|| < ∞}. It is well known that an operator T in a Hilbert space is nuclear if and only if ST contains an orthonormal basis and it is natural to ask under which conditions two orthonormal basis define the same left ideal of nuclear operators. Using results about ST we solve this problem in the more general context of Banach spaces.
Some Results Concerning the M-Structure of Operator Spaces.
Some results on (strong) asymptotic Toeplitzness and Hankelness
Based on the results in A. Feintuch (1989), this work sheds light upon some interesting properties of strongly asymptotically Toeplitz and Hankel operators, and relations between these two classes of operators. Indeed, among other things, two main results here are (a) vanishing Toeplitz and Hankel operators forms an ideal, and (b) finding the distance of a strongly asymptotically Toeplitz operator from the set of vanishing Toeplitz operators.
Some spaces of entire and nuclearly entire functions on a Banach space. I.
Some spaces of entire and nuclearly entire functions on a Banach space. II.
Some stable operator ideals
Some stable operator ideals.
Some stable operator ideals
Some summation formulae in commutative Leibniz algebras with logarithms