Absolute retracts as factors of normed linear spaces
Alexandroff spaces.
Algebraic and topological structures on the set of mean functions and generalization of the AGM mean
We present new structures and results on the set of mean functions on a given symmetric domain in ℝ². First, we construct on a structure of abelian group in which the neutral element is the arithmetic mean; then we study some symmetries in that group. Next, we construct on a structure of metric space under which is the closed ball with center the arithmetic mean and radius 1/2. We show in particular that the geometric and harmonic means lie on the boundary of . Finally, we give two theorems...
Algebras of real-valued uniform maps
Algunos espacios topológicos que admiten una medida-categoría.
Almost convex metrics and Peano compactifications.
Almost every function is independent
Almost locatedness in uniform spaces
A weak form of the constructively important notion of locatedness is lifted from the context of a metric space to that of a uniform space. Certain fundamental results about almost located and totally bounded sets are then proved.
Alternative definitions of -density topology
Always of the first category sets
Always of the first category sets (II)
Ambiguous Loci of the Metric Projection Onto Compact Starshaped Sets in a Banach Space.
An analogue of a result of Carathéodory
An application of the theory of isosceles (ultrametric) spaces to the Trnková-Vinárek theorem
An Ascoli theorem for sequential spaces.
An exact sequence from the nth to the (n-1)-st fundamental group
An Exactly Two-to-One Map from an Indecomposable Chainable Continuum
It is shown that a certain indecomposable chainable continuum is the domain of an exactly two-to-one continuous map. This answers a question of Jo W. Heath.
An example of a probabilistic metric space not induced from a random normed space.
An extension of Kirk-Schöneberg theorem to uniform spaces
An extension of Kirk - Schöneberg surjectivity result is established.
An extension theorem for multifunctions and a characterization of complete metric spaces