Retractions and Open Mappings between Convex Sets.
Schauder decompositions and their applications to continuity of maps.
Selections and near-selections in metric linear spaces without local convexity
We characterize the AR property in convex subsets of metric linear spaces in terms of certain near-selections.
Semi-continuity of the face-function for a convex set.
Semireflexive Spaces In Which The Theorem On The Derivative-Of-The-Inverse Fails For Frechet Derivatives.
Sequential convergence in topological vector spaces.
Sets invariant under projections onto two dimensional subspaces
The Blaschke–Kakutani result characterizes inner product spaces , among normed spaces of dimension at least 3, by the property that for every 2 dimensional subspace there is a norm 1 linear projection onto . In this paper, we determine which closed neighborhoods of zero in a real locally convex space of dimension at least 3 have the property that for every 2 dimensional subspace there is a continuous linear projection onto with .
Singular supports. I.
Small deformations of topological algebras
We investigate stability of various classes of topological algebras and individual algebras under small deformations of multiplication.
Smulian-Eberlein Spaces
Some characterization of c-paracompact and c-collectionwise normal spaces by continuous selections (II).
Some characterizations of c-paracompact and c-collectionwise normal spaces by continuous selections (I).
In this note we characterize the c-paracompact and c-collectionwise normal spaces in terms of continuous selections. We include the usual techniques with the required modifications by the cardinality.
Some criteria for weak compactness.
Some fixed point theorems for multivalued mappings
Some Normed Barrelled Spaces which are not Baire.
Some Results on Non-Semireflexive Spaces.
Some summation formulae in commutative Leibniz algebras with logarithms
Some Theorems On The Fixed Point In Locally Convex Spaces
Some theorems on the fixed point in locally convex spaces.
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