Remark on sums of complemented subspaces
Remarks on tensor products and their applications in quantum theory I. General considerations
Remarks on tensor proucts and their applications in quantum theory - II. Spectral properties
Remarques sur les propriété de dualité et d'interpolation des idéaux de R. Schatten
Resolventenwachstum und Vollständigkeit meromorpher Operatoren in normierten Räumen.
Riesz Transformations on Locally Bounded Spaces.
Rosenthal and semi-Tauberian linear relations in normed spaces
The class of Rosenthal linear relations in normed spaces is introduced and studied in terms of their first and second conjugates. We investigate the relationship between a Rosenthal linear relation and its conjugate. In this paper, we also study the semi-Tauberian linear relations following the pattern followed for the study of the Tauberian linear relations. We prove that the semi-Tauberian linear relations share some of the properties of Tauberian linear relations and they are related to Rosenthal...
Scattered elements of Banach algebras
A scattered element of a Banach algebra is an element with at most countable spectrum. The set of all scattered elements is denoted by (). The scattered radical is the largest ideal consisting of scattered elements. We characterize in several ways central elements of modulo the scattered radical. As a consequence, it is shown that the following conditions are equivalent: (i) () + () ⊂ (); (ii) ()() ⊂ (); (iii) .
Schauder's Theorem and Riesz Theory for Compact-like Operators.
Schwartz spaces and compact holomorphic mappings.
Semigroup theory applied to options.
Singular sets and number of solutions of nonlinear boundary value problems
s-Numbers of operators in Banach spaces
Sobre los espacios de Banach que contienen a l1 como complementado.
Some linear topological properties of the spaces of operators on Hilbert space
Some Relations Between s-Numbers of Operators on Banach Spaces.
Some remarks on compact maps in Banach spaces
Spaces of Compact Operators.
Spaces of Lipschitz type, embeddings and entropy numbers [Book]
Sturm-Liouville systems are Riesz-spectral systems
The class of Sturm-Liouville systems is defined. It appears to be a subclass of Riesz-spectral systems, since it is shown that the negative of a Sturm-Liouville operator is a Riesz-spectral operator on L^2(a,b) and the infinitesimal generator of a C_0-semigroup of bounded linear operators.