3 papers
math.CO2024
Cayley graphs on -solvable groups generated by -singular elements
Mahdi Ebrahimi
For a graph , the multiplicity of the eigenvalue , denoted by , is called the nullity of . Also the energy of , denoted by , is defined as t…
math.GR2024
Non-vanishing elements and complex group algebras
Mahdi Ebrahimi
Let be a finite group, and let denote the set of irreducible complex characters of . An element of is said to be vanishing, if for some in $\m…
math.CO2024
Cayley graphs on symmetric groups generated by -cycles are hyperenergetic
Mahdi Ebrahimi
Let be a simple graph with vertices. The energy of , denoted by , is defined as the sum of the absolute values of the eigenvalues of . The graph $…