A characterization of singular endomorphisms of a barrelled Ptak space.
A class of locally convex spaces without -webs
In this article we give some properties of the tensor product, with the and topologies, of two locally convex spaces. As a consequence we prove that the theory of M. de Wilde of the closed graph theorem does not contain the closed graph theorem of L. Schwartz.
A Counterexample for one Variant of Mcintosh Closed Graph Theorem
A Lagrange multiplier theorem and a sandwich theorem for convex relations.
A new proof for a Rolewicz's type theorem: An evolution semigroup approach.
A Note on B- and Br-Completeness.
A Note on B-Complete Spaces and the Closed Graph Theorem.
A note on closed graph theorems.
A Note on Surjections of Locally Convex Spaces.
A quantitative refinement of the closed graph theorem
A revised closed graph theorem for quasi-Suslin spaces
Some results about the continuity of special linear maps between -spaces recently obtained by Drewnowski have motivated us to revise a closed graph theorem for quasi-Suslin spaces due to Valdivia. We extend Valdivia’s theorem by showing that a linear map with closed graph from a Baire tvs into a tvs admitting a relatively countably compact resolution is continuous. This also applies to extend a result of De Wilde and Sunyach. A topological space is said to have a (relatively countably) compact...
A sequential analogue of the Grothendieck-Pták topology
A theorem of Rolewicz's type for measurable evolution families in Banach spaces.
A Theorem of the Closed Graph Type.
Adjungiertenbildungen in der Operatortheorie.
Algunos nuevos resultados sobre el teorema de la gráfica cerrada.
Para varios espacios localmente separados, damos aplicaciones lineales no continuas con gráficas cerradas. Uno de los resultados obtenidos contiene el teorema de Mahowald como corolario [7]. Si ε es una clase de espacios localmente convexos separados, estable para límites inductivos y conteniendo los espacios de dimensiones finitas, sea εr la clase de todos los espacios localmente convexos separados tales que si E ∈ ε, F ∈ εr y f es una aplicación lineal de E en F con gráfica cerrada, entonces f...
An extension of Amir-Lindenstrauss theorem.
Automatic continuity, local type and causality
Automatic Continuity of Generalized Local Linear Operators.