Results 11 to 20 of about 191 (93)

Hahn-Banach type extension results for linear operators on asymmetric normed spaces

open access: yes
We present some results related to Hahn-Banach extension theorem for linear operators on asymmetric normed spaces. L. Nachbin, Trans. Amer. Math. Soc. 68 (1950), proved that a Banach space has the extension property for linear operators (a property also called injectivity) if and only if it has the Binary Intersection Property (BIP), meaning that every
Cobzaş, S.
openaire   +3 more sources

Asymmetric free spaces and canonical asymmetrizations [PDF]

open access: yes, 2021
A construction analogous to that of Godefroy-Kalton for metric spaces allows one to embed isometrically, in a canonical way, every quasi-metric space (X, d) in an asymmetric normed space F-a (X, d) (its quasi-metric free space, also called asymmetric ...
Daniilidis, Aris   +2 more
core   +3 more sources

On generalizations of fuzzy metric spaces [PDF]

open access: yes, 2023
summary:The aim of the paper is to present three-variable generalizations of fuzzy metric spaces in sense of George and Veeramani from functional and topological points of view, respectively.
Shi, Yi, Yao, Wei
core   +1 more source

On w-Isbell-convexity [PDF]

open access: yes, 2022
[EN] Chistyakov introduced and developed a concept of modular metric for an arbitrary set in order to generalise the classical notion of modular on a linear space.
Olela Otafudu, Olivier   +1 more
core   +1 more source

The uniform boundedness theorem in asymmetric normed spaces [PDF]

open access: yes, 2012
We obtain a uniform boundedness type theorem in the frame of asymmetric normed spaces. The classical result for normed spaces follows as a particular case.The authors are very grateful to the referee for many observations and comments that have allowed ...
Romaguera Bonilla, Salvador   +5 more
core   +1 more source

Análisis funcional en estructuras asimétricas

open access: yes, 2023
Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Matemáticas, leída el 21-07-2023Esta tesis, titulada “Análisis funcional en estructuras asimétricas”, consiste en el estudio de distintos tipos de estructuras de naturaleza ...
Venegas Martínez, Francisco Javier Antonio
core   +2 more sources

Computing Optimal Distances to Pareto Sets of Multi-Objective Optimization Problems in Asymmetric Normed Lattices [PDF]

open access: yes, 2019
[EN] Given a finite dimensional asymmetric normed lattice, we provide explicit formulae for the optimization of the associated (non-Hausdorff) asymmetric distance among a subset and a point.
Blasco, Xavier   +3 more
core   +1 more source

Q-functions on quasimetric spaces and fixed points for multivalued maps [PDF]

open access: yes, 2011
[EN] We discuss several properties of Q-functions in the sense of Al-Homidan et al.. In particular, we prove that the partial metric induced by any T0 weighted quasipseudometric space is a Q-function and show that both the Sorgenfrey line and the ...
Romaguera Bonilla, Salvador   +6 more
core   +1 more source

Compactness in asymmetrically normed lattices.

open access: yes, 2012
Includes abstract.Includes bibliographical references.The aim of the thesis is to investigate aspects of the theory of such spaces, concentrating mainly, but not exclusively, on nite dimensional spaces.
Mabula, Mokhwetha Daniel
core  

The Dual space of an asymmetric normed linear space

open access: yes, 2004
Given an asymmetric normed linear space (X, q), we construct and study its dual space (X*, q*). In particular, we show that (x*, q*) is a biBanach semilinear space and prove that (X, q) can be identified as a subspace of its bidual by an isometric ...
Sanchez-Perez, E.A.   +2 more
core  

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