35 citations · 74 across the 22 of their papers we have counts for
6 papers · 1 filter
An Algorithm for Constructing All Supercharacter Theories of a Finite Group
A. R. Ashrafi, L. Ghanbari Maman, K. Kavousi +1
In 2008, Diaconis annd Isaacs introduced the notion of a supercharacter theory of a finite group in which supercharacters replace with irreducible characters and superclasses by co…
Maximum Zagreb Indices Among All p-Quasi k-Cyclic Graphs
A Ghalavand, A R Ashrafi
A simple connected graph G is called a p-quasi k-cyclic graph, if there exists a subset S of vertices such that |S|=p, G-S is k-cyclic and there is no a subset S` of V(G) such that…
No two Jellyfish graphs are L-cospectral and Q-cospectral
A. Z. Abdian, A. R. Ashrafi
In this paper, it is proved that the jellyfish graphs, a natural generalization of sun graphs, are both DLS and DQS.
The Existence of Minimal Logarithmic Signatures for some Finite Simple Unitary Groups
A. R. Rahimipour, A. R. Ashrafi
The 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…
First and Second Maximum of Randić Index Among all Cyclic Graphs of a Given Order
Ali Reza Ashrafi, Ali Ghalavand, Marzieh Pourbabaee
Suppose is a simple graph with edge set . The Randić index is defined as , where denotes th…
Laplacian Spectral Determination of Path-Friendship Graphs
A. Z. Abdian, A. R. Ashrafi, L. W. Beineke +1
A graph is said to be determined by the spectrum of its Laplacian matrix (DLS) if every graph with the same spectrum is isomorphic to . van Dam and Haemers (2003) conjecture…