Results 11 to 20 of about 2,377 (173)

On Some Homological Properties of Hypergroup Algebras with Relation to Their Character Spaces

open access: yesJournal of Mathematics, 2022
In this paper, we study the notion of approximate biprojectivity and left φ-biprojectivity of some Banach algebras, where φ is a character. Indeed, we show that approximate biprojectivity of the hypergroup algebra L1K implies that K is compact. Moreover,
Amir Sahami   +3 more
doaj   +2 more sources

\alpha-Amenable Hypergroups [PDF]

open access: green, 2009
Let $K$ denote a locally compact commutative hypergroup, $L^1(K)$ the hypergroup algebra, and $\alpha$ a real-valued hermitian character of $K$. We show that $K$ is $\alpha$-amenable if and only if $L^1(K)$ is $\alpha$-left amenable. We also consider the $\alpha$-amenability of hypergroup joins and polynomial hypergroups in several variables as well as
Ahmadreza Azimifard
openalex   +3 more sources

Cyclicity in EL–Hypergroups [PDF]

open access: goldSymmetry, 2018
In the algebra of single-valued structures, cyclicity is one of the fundamental properties of groups. Therefore, it is natural to study it also in the algebra of multivalued structures (algebraic hyperstructure theory). However, when one considers the nature of generalizing this property, at least two (or rather three) approaches seem natural ...
Michal Novák   +2 more
openalex   +6 more sources

Reducibility in Corsini hypergroups

open access: diamondAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper, we study the reducibility property of special hyper-groups, called Corsini hypergroups, named after the mathematician who introduced them.
Kankaras Milica
doaj   +2 more sources

Quasi-Order Hypergroups and T-Hypergroups

open access: yesRatio Mathematica, 2017
Quasi-order hypergroups were introduced by J. Chvalina in 90s of the last century. They form a subclass of the class of all hypergroups, i.e. structures with one associative hyperoperation fulfilling the reproduction axiom.
Šárka Hošková-Mayerová
doaj   +2 more sources

Biopreparations for the decomposition of crop residues. [PDF]

open access: yesMicrob Biotechnol
Researchers and farmers are actively exploring natural solutions to enhance agricultural productivity. This review discusses the opportunities and challenges associated with biopreparation for decomposition of crop residues as a chance for sustainable agricultural practises and biotechnology industry.
Rowińska P   +3 more
europepmc   +2 more sources

On Refined Neutrosophic Canonical Hypergroups [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
Refinement of neutrosophic algebraic structure or hyperstructure allows for the splitting of the indeterminate factor into different sub-indeterminate and gives a detailed information about the neutrosophic structure/hyperstructure considered. This paper
M.A. Ibrahim   +3 more
doaj   +1 more source

On Symbolic Plithogenic Algebraic Structures and Hyper Structures [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
The objective of this paper is to study symbolic Plithogenic algebraic structures and hyper structures. In particular, we study symbolic Plithogenic group, symbolic Plithogenic ring, symbolic Plithogenic hypergroup and symbolic Plithogenic canonical ...
A.A.A. Agboola, M.A. Ibrahim
doaj   +1 more source

Some Results on Single Valued Neutrosophic Hypergroup [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
We introduced the theory of Single valued neutrosophic hypergroup as the initial theory of single valued neutrosophic hyper algebra and also developed some results on single valued neutrosophic hypergroup.
S. Rajareega   +4 more
doaj   +1 more source

A (Discrete) Homotopy Theory for Geometric Spaces

open access: yesJournal of Mathematics, Volume 2023, Issue 1, 2023., 2023
We define the concepts of homotopy and fundamental group for geometric spaces as a generalization of metric spaces, digital spaces, and graphs; then, we compare them with corresponding concepts in these spaces. Also, we state some properties of the fundamental group of geometric spaces and some theorems to calculate them.
Asieh Pourhaghani   +2 more
wiley   +1 more source

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