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Bornological Soft Sets [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2023
The concept of bounded set within this set or space is given by many authors. A bornology is defined on soft set to solve the problems of boundedness for the soft set.
Anwar Imran   +3 more
doaj   +3 more sources

Representations of bornologies

open access: yesApplied General Topology, 2022
Bornologies abstract the properties of bounded sets of a metric space. But there are unbounded bornologies on a metric space like $\mathcal{P}(\RR)$ with the Euclidean metric.
Homeira Pajoohesh
doaj   +4 more sources

On cardinalities and compact closures [PDF]

open access: yesApplied General Topology, 2017
We show that there exists a Hausdorff topology on the set R of real numbers such that a subset A of R has compact closure if and only if A is countable.
Mike Krebs
doaj   +2 more sources

On bornological semi-abelian algebras [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2021
If $\Bbb T$ is a semi-abelian algebraic theory, we prove that the category ${\rm Born}^{\Bbb T}$ of bornological $\Bbb T$-algebras is homological with semi-direct products.
Francis Borceux, Maria Manuel Clementino
doaj   +1 more source

A useful algebra for functional calculus [PDF]

open access: yesMathematica Bohemica, 2019
We show that some unital complex commutative LF-algebra of ${\mathcal{C}}^{(\infty)}$ $\mathbb{N}$-tempered functions on $\mathbb{R}^+$ (M. Hemdaoui, 2017) equipped with its natural convex vector bornology is useful for functional calculus.
Mohammed Hemdaoui
doaj   +1 more source

Fuzzy Bornological Group

open access: yesAcademic Science Journal, 2023
The aim of this work is to construct a new structure which is called fuzzy group bornology to solve the problem of bounded for fuzzy group.  Furthermore, we explain that the intersection of collections of fuzzy bornological groups is a fuzzy ...
Amal O. Elewi, Anwar N. Imran
doaj   +1 more source

On asymorphisms of finitary coarse spaces

open access: yesМатематичні Студії, 2021
We characterize finitary coarse spaces X such that every permutation of X is an asymorphism.
I. V. Protasov
doaj   +1 more source

Mackey Q-algebras; pp. 40–53 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2017
Main properties of the topology defined by a bornology on a topological linear space and main properties of Mackey Q-algebras are presented. Relationships of Mackey Q-algebras with other classes of topological algebras are described.
Mati Abel
doaj   +1 more source

Extremal balleans

open access: yesApplied General Topology, 2019
A ballean (or coarse space) is a set endowed with a coarse structure. A ballean X is called normal if any two asymptotically disjoint subsets of X are asymptotically separated.
Igor Protasov
doaj   +1 more source

Extensions defined using bornologies

open access: yesApplied General Topology, 2013
Many extensions of a space X such that the remainder Y is closed can be constructed as B-extensions, that is, by defining a topology on the disjoint union X [ Y , provided there exists a map, satisfying some conditions, from a basis of Y into the family ...
Alessandro Caterino, M. Cristina Vipera
doaj   +1 more source

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