Results 31 to 40 of about 579 (94)

Closed graph theorems for bornological spaces

open access: yes, 2015
The aim of this paper is that of discussing Closed Graph Theorems for bornological vector spaces in a way which is accessible to non-experts. We will see how to easily adapt classical arguments of functional analysis over $\mathbb{R}$ and $\mathbb{C}$ to
Bambozzi, Federico
core   +1 more source

On \(\beta\)-differentiability of norms

open access: yesJournal of Numerical Analysis and Approximation Theory, 2004
In this note we give some characterizations for the differentiability with respect to a bornology of a continuous convex function. The special case of seminorms is treated.
Valeriu Anisiu
doaj   +2 more sources

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

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

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

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

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

Higher spectral flow and an entire bivariant JLO cocycle

open access: yes, 2012
Given a smooth fibration of closed manifolds and a family of generalised Dirac operators along the fibers, we define an associated bivariant JLO cocycle. We then prove that, for any $\ell \geq 0$, our bivariant JLO cocycle is entire when we endow smoooth
Benameur, Moulay-Tahar, Carey, Alan L.
core   +3 more sources

Homotopy theory with bornological coarse spaces

open access: yes, 2020
We propose an axiomatic characterization of coarse homology theories defined on the category of bornological coarse spaces. We construct a category of motivic coarse spectra.
Bunke, Ulrich, Engel, Alexander
core   +1 more source

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