A Solution to a Problem of de Wilde and Tsirulnikov.
A solution to a problem of De Wilde - Tsirulnikov
A spectral theory for order unit spaces
A splitting theory for the space of distributions
The splitting problem is studied for short exact sequences consisting of countable projective limits of DFN-spaces (*) 0 → F → X → G → 0, where F or G are isomorphic to the space of distributions D'. It is proved that every sequence (*) splits for F ≃ D' iff G is a subspace of D' and that, for ultrabornological F, every sequence (*) splits for G ≃ D' iff F is a quotient of D'
A stability theorem for the choquet-ordering in C...(X).
A stochastic version of Fan's best approximation theorem.
A Stone-Weierstrass theorem for Banach lattices
A Structure Theorem for Schwartz Spaces.
A study on some new types of Hardy-Hilbert's integral inequality.
A sufficient condition of type (...) for Tame Splitting of short exact sequences of Fréchet spaces.
A systematization of convexity concepts for sets and functions.
A tame splitting theorem for exact sequences of Fréchet spaces.
A theorem of Borsuk-Ulam type for multifunctions
A theorem of Hahn-Banach type for locally convex topological spaces
A theorem of Rolewicz's type for measurable evolution families in Banach spaces.
A Theorem of the Closed Graph Type.
A theorem of the Hahn-Banach type and its applications
Let Y be a subgroup of an abelian group X and let T be a given collection of subsets of a linear space E over the rationals. Moreover, suppose that F is a subadditive set-valued function defined on X with values in T. We establish some conditions under which every additive selection of the restriction of F to Y can be extended to an additive selection of F. We also present some applications of results of this type to the stability of functional equations.
A Theorem On Fixed Points In Locally Convex Spaces
A theorem on matrices and its applications in functional analysis
A theorem on the weak topology of C(X) for compact scattered X