M. Maghasedi

activity

20182021

collaborators

3 papers

math.CO2021

On the Signed Complete Graphs with Maximum Index

N. Kafai, F. Heydari, N. Jafari Rad +1

Let $Γ = (K_{n}, H^{-})$ be a signed complete graph whose negative edges induce a subgraph $H$ . The index of $Γ$ is the largest eigenvalue of its adjacency matrix. In this paper we stud…

math.CO2019

On the eigenvalues of some signed graphs

M. Souri, F. Heydari, M. Maghasedi

Let $G$ be a simple graph and $A (G)$ be the adjacency matrix of $G$ . The matrix $S (G) = J - I - 2 A (G)$ is called the Seidel matrix of $G$ , where $I$ is an identity matrix and $J$ is…

math.GR2018

Rhomboidal C4C8 toris which are Cayley graphs

F. Afshari, M. Maghasedi

A C4C8 net is a trivalent decoration made by alternating squares C4 and octagons C8. It can cover either a cylinder or a torus. In this paper we determine rhomboidal C4C8 toris whi…