Results 1 to 10 of about 71 (68)

On the Non Metrizability of Berwald Finsler Spacetimes

open access: yesUniverse, 2020
We investigate whether Szabo’s metrizability theorem can be extended to Finsler spaces of indefinite signature. For smooth, positive definite Finsler metrics, this important theorem states that, if the metric is of Berwald type (i.e., its Chern–Rund ...
Nicoleta Voicu   +2 more
exaly   +3 more sources

Some new results on $\star$-metric spaces

open access: yesJournal of New Results in Science, 2023
The concept of $\star$-metric, based on the relaxation of triangle inequality of metric axioms by using a t-definer, was introduced by Khatami and Mirzavaziri.
Tarapada Bag, Abhishikta Das
doaj   +1 more source

Systematic Assessment of Product Quality

open access: yesJournal of Open Innovation: Technology, Market and Complexity, 2021
The article describes an innovative metrizable idea for systemic assessments of product quality within the baking industry. Complex product quality analysis requires the employment of metrizability criteria for factors that impact the quality of the ...
Radoslaw Drozd, Radoslaw Wolniak
doaj   +3 more sources

Geometrical properties of the space of idempotent probability measures

open access: yesApplied General Topology, 2021
Although traditional and idempotent mathematics are "parallel'', by an application of the category theory we show that objects obtained the similar rules over traditional and idempotent mathematics must not be "parallel''.
Kholsaid Fayzullayevich Kholturayev
doaj   +1 more source

Concerning nearly metrizable spaces

open access: yesApplied General Topology, 2013
The purpose of this paper is to introduce the notion of near metrizability for topological spaces, which is strictly weaker than the concept of metrizability.
M. N. Mukherjee, Dhananjoy Mandal
doaj   +1 more source

Near metrizability via a new approach

open access: yesApplied General Topology, 2014
The present article deals with near metrizability, initiated in an earlier paper, with a new orientation and approach. The notions of nearly regular and uniform pseudo-bases are introduced and analogues of some results concerning metrizability and ...
Dhananjoy Mandal, M. N. Mukherjee
doaj   +1 more source

Asymptotic structures of cardinals

open access: yesApplied General Topology, 2014
A ballean is a set X endowed with some family F of its subsets, called the balls, in such a way that (X,F)  can be considered as an asymptotic counterpart of a uniform topological space.
Oleksandr Petrenko   +2 more
doaj   +1 more source

On Topological and Metric Properties of ⊕-sb-Metric Spaces

open access: yesMathematics, 2023
In this paper, we study ⊕-sb-metric spaces, which were introduced to generalize the concept of strong b-metric spaces. In particular, we study the properties of the topology induced via an ⊕-sb metric (separation properties, countability axioms, etc ...
Alexander Šostak   +2 more
doaj   +1 more source

On Radon Barycenters of Measures on Spaces of Measures

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
We study metrizability of compact sets in spaces of Radon measures with the weak topology. It is shown that if all compacta in a given completely regular topological space are metrizable, then every uniformly tight compact set in the space of Radon ...
V.I. Bogachev, S.N. Popova
doaj   +1 more source

The Alexandroff Duplicate and its subspaces

open access: yesApplied General Topology, 2007
We study some topological properties of the class of the Alexandroff duplicates and their subspaces. We give a characterization of metrizability and Lindel¨of properties of subspaces of the Alexandroff duplicate.
Agata Caserta, Stephen Watson
doaj   +1 more source

Home - About - Disclaimer - Privacy