Eine für die Nuklearität lokalkonvexer Räume hinreichende Bedingung.
Eine Konvexitätsungleichung für Integrale in Fréchet-Räumen.
Eine neue Charakterisierung bornologischer und verwandter Räume.
Eine topologische Kennzeichnung des Ordnungsduals eines Vektorverbandes.
Eine Verallgemeinerung des Satzes vom abgeschlossenen Wertebereich in lokalkonvexen Räumen.
Einige Existenz- und Einschließungssätze für Fixpunkte expandierender Integraloperatoren. (Short Communication).
Einige Existenz- und Einschließungssätze für Fixpunkte expandierender Integraloperatoren.
Einige Vererbbarkeitseigenschaften von B- und Br vollständigen Räumen.
e-isometric approximation problem.
Ekeland's variational principle in Fréchet spaces and the density of extremal points
By modifying the method of Phelps, we obtain a new version of Ekeland's variational principle in the framework of Fréchet spaces, which admits a very general form of perturbations. Moreover we give a density result concerning extremal points of lower semicontinuous functions on Fréchet spaces. Even in the framework of Banach spaces, our result is a proper improvement of the related known result. From this, we derive a new version of Caristi's fixed point theorem and a density result for Caristi...
Ekeland's variational principle in locally p-convex spaces and related results
In the framework of locally p-convex spaces, two versions of Ekeland's variational principle and two versions of Caristi's fixed point theorem are given. It is shown that the four results are mutually equivalent. Moreover, by using the local completeness theory, a p-drop theorem in locally p-convex spaces is proven.
El espacio de la convergencia en medida y su dual.
El espacio L1(μ, E).
El teorema de la gráfica cerrada con condiciones débiles de continuidad.
In this paper we develop a duality theory of the closed graph theorem with weak continuity conditions, in order to obtain some permanence and maximality properties concerning the domain and range classes.
El teorema de Radon-Nikodym en espacios bornológicos.
ELB holomorphic factorization over projective limit representations
Elementary Tauberian Theorems For Regular Linear Operators
Elementary Tauberian theorems for regular linear operators.
Embedding of Stein spaces into sequence spaces.
Embedding quasi-metric spaces in Hilbert spaces.