12 citations · 15 across the 7 of their papers we have counts for
8 papers
Power graphs of all nilpotent groups
Sayyed Heidar Jafari, Samir Zahirović
The directed power graph of a group is the simple digraph with vertex set such that if is a power of . The pow…
Some factorization properties of idealization in commutative rings with zero divisors
Sina Eftekhari, Sayyed Heidar Jafari, Mahdi Reza Khorsandi
We study some factorization properties of the idealization of a module in a commutative ring which is not necessarily a domain. We show that $R \m…
On the connectivity and independence number of power graphs of groups
P. J. Cameron, S. H. Jafari
Let be a group. The power graph of is a graph with vertex set in which two distinct elements are adjacent if one of them is a power of the other. We characterize…
A description of automorphism group of power graphs of finite groups
Sayyed Heidar Jafari
The power graph of a group is the graph whose vertex set is the set of nontrivial elements of group, two elements being adjacent if one is a power of the other. We introduce some w…
The energy and spectrum of non commuting graph
Sayyed Heidar Jafari, Maryam Nasiri
Let G be a non-abelian group and Z(G) be the center of G. The non-commuting graph Γ(G) of G is a graph with vertex set is non central elements of G and two vertices x, y are adjace…
The diameter of proper power graphs of alternating groups
Kobra Porghobadi, Sayyed Heidar Jafari
The power graph of finite group G is a simple graph whose vertex set is G and two distinct elements a and b are adjacent if and only if one of them is a power of the other. The pro…
Some results in a new power graphs in finite groups
S. H. Jafari
The power graph of a group is the graph whose vertex set is the set of non-trivial elements of group, two elements being adjacent if one is a power of the other. We define a new po…
Results on the intersection graphs of subspaces of a vector space
N. Jafari Rad, S. H. Jafari
For a vector space the \emph{intersection graph of subspaces} of , denoted by , is the graph whose vertices are in a one-to-one correspondence with proper nontrivial s…