University of Kashan

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20022025

most citedElastic proton-deuteron scattering at intermediate energies

57 citations

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math.GR2020★ 3 cited

Construction of New Gyrogroups and the Structure of their Subgyrogroups

S. Mahdavi, A. R. Ashrafi, M. A. Salahshour

Suppose that $G$ is a groupoid with binary operation $\otimes$ . The pair $(G, \otimes)$ is said to be a gyrogroup if the operation $\otimes$ has a left identity, each element $a \in…

math.GR2020

Counting the Number of Centralizers of 2-Element Subsets in a Finite Group

A. R. Ashrafi, F. Koorepazan-Moftakhar, M. A. Salahshour

Suppose $G$ is a finite group. The set of all centralizers of $2 -$ element subsets of $G$ is denoted by $2 - C e n t (G)$ . A group $G$ is called $(2, n) -$ centralizer if $∣2 - C e n t (G) ∣ = n$ a…

math.GR2019★ 1 cited

The Existence of Minimal Logarithmic Signatures for some Finite Simple Unitary Groups

A. R. Rahimipour, A. R. Ashrafi

The $M L S$ conjecture states that every finite simple group has a minimal logarithmic signature. The aim of this paper is proving the existence of a minimal logarithmic signature fo…

math.GR2017

The Automorphism Group of the Reduced Complete-Empty $X -$ Join of Graphs

Adel Tadayyonfar, Ali Reza Ashrafi

Suppose $X$ is a simple graph. The $X -$ join $Γ$ of a set of complete or empty graphs ${X_{x}}_{x \in V (X)}$ is a simple graph with the following vertex and edge sets: \begin{eqnar…

math.GR2005

On finite groups whose every proper normal subgroup is a union of a given number of conjugacy classes

Ali Reza Ashrafi, Geetha Venkataraman

Let $G$ be a finite group and $A$ be a normal subgroup of $G$ . We denote by $n cc (A)$ the number of $G$ -conjugacy classes of $A$ and $A$ is called $n$ -decomposable, if $n cc (A) = n$ . S…

Construction of New Gyrogroups and the Structure of their Subgyrogroups

Counting the Number of Centralizers of 2-Element Subsets in a Finite Group

The Existence of Minimal Logarithmic Signatures for some Finite Simple Unitary Groups

The Automorphism Group of the Reduced Complete-Empty X−Join of Graphs

On finite groups whose every proper normal subgroup is a union of a given number of conjugacy classes

The Automorphism Group of the Reduced Complete-Empty $X -$ Join of Graphs