Results 1 to 10 of about 430 (69)

Commutativity and Completeness Degrees of Weakly Complete Hypergroups

open access: yesMathematics, 2022
We introduce a family of hypergroups, called weakly complete, generalizing the construction of complete hypergroups. Starting from a given group G, our construction prescribes the β-classes of the hypergroups and allows some hyperproducts not to be ...
Mario De Salvo   +3 more
doaj   +3 more sources

New Aspects in the Theory of Complete Hypergroups

open access: yesComputer Sciences & Mathematics Forum, 2023
The aim of this paper is to review the most important properties and applications of the complete hypergroups. We will focus on the reversibility, regularity and reducibility properties, on the class equation and the commutativity degree of the complete ...
Irina Cristea
doaj   +3 more sources

Complete parts and subhypergroups in reversible regular hypergroups

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
In this paper we analyse the center and centralizer of an element in the context of reversible regular hypergroups, in order to obtain the class equation in regular reversible hypergroups, by using complete parts.
Leoreanu-Fotea V.   +3 more
doaj   +2 more sources

The Class Equation and the Commutativity Degree for Complete Hypergroups [PDF]

open access: yesMathematics, 2020
The aim of this paper is to extend, from group theory to hypergroup theory, the class equation and the concept of commutativity degree. Both of them are studied in depth for complete hypergroups because we want to stress the similarities and the ...
Andromeda Cristina Sonea, Irina Cristea
doaj   +3 more sources

Euler's totient function applied to complete hypergroups

open access: yesAIMS Mathematics, 2023
<abstract><p>We study the Euler's totient function (called also the Euler's phi function) in the framework of finite complete hypergroups. These are algebraic hypercompositional structures constructed with the help of groups, and endowed with a multivalued operation, called hyperoperation.
Sonea, Andromeda Cristina   +1 more
openaire   +5 more sources

1-Hypergroups of Small Sizes

open access: yesMathematics, 2021
In this paper, we show a new construction of hypergroups that, under appropriate conditions, are complete hypergroups or non-complete 1-hypergroups.
Mario De Salvo   +3 more
doaj   +1 more source

On the n-complete hypergroups

open access: yesDiscrete Mathematics, 1999
The authors introduce the class of \(n^*\)-complete hypergroups which is a generalization of the well known class of \(n\)-complete hypergroups. The difference is that in \(n^*\)-complete hypergroups the fundamental relation \(\beta^*\) is used instead of the \(\beta\) relation. A hypergroup is a group iff it is \(1^*\)-complete.
DE SALVO, Mario, LO FARO, Giovanni
openaire   +3 more sources

On the γn∗-complete hypergroups

open access: yesEuropean Journal of Combinatorics, 2007
AbstractThe class of γn∗-complete hypergroups is introduced. Several properties and examples are found.
Davvaz, B., Karimian, M.
  +4 more sources

Limit theorems for radial random walks on pxq-matrices as p tends to infinity [PDF]

open access: yes, 2007
The radial probability measures on $R^p$ are in a one-to-one correspondence with probability measures on $[0,\infty[$ by taking images of measures w.r.t. the Euclidean norm mapping. For fixed $\nu\in M^1([0,\infty[)$ and each dimension p, we consider i.i.
Rösler, Margit, Voit, Michael
core   +2 more sources

On topological complete hypergroups

open access: yesFilomat, 2017
One of the main obstacles before the development of the theory of topological hypergroups is the fact that translation of open sets may not be open in this setting. In this paper, we get rid of such obstacle by introducing the concept of topological complete hypergroups and investigate some of their properties.
Singha, Manoranjan   +2 more
openaire   +1 more source

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