Results 31 to 40 of about 600 (109)

Well-posedness, bornologies, and the structure of metric spaces

open access: yesApplied General Topology, 2009
Given a continuous nonnegative functional λ that makes sense defined on an arbitrary metric space (X, d), one may consider those spaces in which each sequence (xn) for which lim n→∞λ(xn) = 0 clusters. The compact metric spaces, the complete metric spaces,
Gerald Beer, Manuel Segura
doaj   +1 more source

Functional boundedness of balleans

open access: yes, 2019
We pose some open problems related to boundedness of real-valued functions on balleans and coarse spaces. Also we prove that the Bergman property of groups is a coarse invariant.
Banakh, Taras, Protasov, Igor
core   +1 more source

Real Functions, Covers and Bornologies

open access: yesTatra Mountains Mathematical Publications, 2021
Abstract The paper tries to survey the recent results about relationships between covering properties of a topological space X and the space USC(X) of upper semicontinuous functions on X with the topology of pointwise convergence. Dealing with properties of continuous functions C(X), we need shrinkable covers.
openaire   +2 more sources

Multivalued Usco Functions and Stegall Spaces

open access: yesRevista de Ciencias, 2018
In this article we consider the study of the -differentiability and -ifferentiability for convex functions, not only in the general context of topological vector spaces (), but also in the context of Banach spaces.
Diana Ximena Narváez
doaj   +1 more source

A convenient setting for real analytic mappings

open access: yes, 1989
We present here "the" cartesian closed theory for real analytic mappings. It is based on the concept of real analytic curves in locally convex vector spaces.
Andreas Kriegl   +2 more
core   +4 more sources

Bornological convergences

open access: yesJournal of Mathematical Analysis and Applications, 2004
The authors consider some special topologies of hyperspaces based on so-called bornologies. A bornology on a set \(X\) is a family \(\mathcal S\) of subsets of \(X\) such that: \(\mathcal S\) is a cover of \(X\), \(\mathcal S\) is closed under subsets and \(\mathcal S\) is closed under finite unions.
Lechicki, A, LEVI, SANDRO, Spakowski, A.
openaire   +3 more sources

Product metrics and boundedness

open access: yesApplied General Topology, 2008
This paper looks at some possible ways of equipping a countable product of unbounded metric spaces with a metric that acknowledges the boundedness characteristics of the factors.
Gerald Beer
doaj   +1 more source

Functional analysis on two-dimensional local fields

open access: yes, 2013
We establish how a two-dimensional local field can be described as a locally convex space once an embedding of a local field into it has been fixed. We study the resulting spaces from a functional analytic point of view: in particular we study bounded, c-
Camara, Alberto
core   +1 more source

Semi Bornological Groups

open access: yesJournal of Physics: Conference Series, 2019
Abstract The motivation for this work is to find the sufficient conditions to bornologize any group and solve the problem of boundedness for any group, by constructing new structure semi bornological groups. In particular, we show that every left (right) translations in semi bornological groups are bornological isomorphisms and therefore
Anwar N. Imran, Sh. K. Said Husain
openaire   +1 more source

Extensions and Applications of Locally Solid Convergence Structures

open access: yesMathematics
Locally solid convergence structures provide a unifying framework for both topological and non-topological convergences in vector lattice theory. In this paper, we explore various extensions and applications of locally solid convergence structures.
Saeed Hashemi Sababe
doaj   +1 more source

Home - About - Disclaimer - Privacy