On the Eigenvalues of Rhomboidal C4C8(R)[n; n] Nanotori

نویسندگان
Afshari, F. ID 1
Maghasedi, M. ID 2

1 Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran

2 Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran

doi
10.22052/ijmc.2018.118152.1343
چکیده

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 study the adjacency spectrum of rhomboidal C4C8 tori. We also give lower and upper bounds for a chemical quantity, namely Estrada index, for a C4C8 net.

کلیدواژه‌ها
C4C8 rhomboidal torus, Cayley graph, Graph spectrum, Estrada index