TY - JOUR
ID - 5217
TI - A Note on the First Geometric-Arithmetic Index of Hexagonal Systems and Phenylenes
JO - Iranian Journal of Mathematical Chemistry
JA - IJMC
LA - en
SN - 2228-6489
AU - YARAHMADI, Z.
AD - Khorramabad Branch, Islamic Azad University,
I. R. Iran
Y1 - 2011
PY - 2011
VL - 2
IS - 2
SP - 101
EP - 108
KW - Geometric-arithmetic index
KW - Hexagonal system
KW - Phenylenes
DO - 10.22052/ijmc.2011.5217
N2 - The first geometric-arithmetic index was introduced in the chemical theory as the summation of 2 du dv /(du dv ) overall edges of the graph, where du stand for the degree of the vertex u. In this paper we give the expressions for computing the first geometric-arithmetic index of hexagonal systems and phenylenes and present new method for describing hexagonal system by corresponding a simple graph to each hexagonal system.
UR - http://ijmc.kashanu.ac.ir/article_5217.html
L1 - http://ijmc.kashanu.ac.ir/article_5217_cf559f5adb428efd20c49b760ad4806e.pdf
ER -