Abstract
Let G be a molecular graph and e=uv be an edge of G. Define n (e |G) eu
to the number of edges of lying closer to u than
to v and n ev(e |G) to the number of edges of lying closer to v than to u. Then the edge Szeged index of G, Sz (G) e, is defined as the sum of n (e |G) eu nev (e |G)
over all edges of G. In this paper we find the above index for ( ) 4 8 TUC C S
nanotori graph using the group of automorphisms of G. This is an efficient method of finding this index especially when the
automorphism group of G has a few orbits on E(G)..
Keywords
Edge Szeged Index, Nanotori, automorphism.
Citation
JAFAR ASADPOUR, RASOUL MOJARAD, MEHDI ALAEIYAN, Computing the edge Szeged index of polyhex nanotori by automorphism, Optoelectronics and Advanced Materials - Rapid Communications, 9, 9-10, September-October 2015, pp.1221-1223 (2015).
Submitted at: Oct. 30, 2014
Accepted at: Sept. 9, 2015