Two Types of Geometric–Arithmetic Index of V–phenylenic Nanotube

نویسندگان
GHORBANI, M. ID 1
MORADI, S. ID 2
BABARAHIM, S. ID 3

1 Shahid Rajaee Teacher Training University, I. R. Iran

2 Arak University, I. R. Iran

3 Arak University, I. R. Iran

doi
10.22052/ijmc.2011.5218
چکیده

The concept of geometric-arithmetic indices was introduced in the chemical graph theory. These indices are defined by the following general formula:     ( ) 2 ( ) uv E G u v u v Q Q Q Q GA G , where Qu is some quantity that in a unique manner can be associated with the vertex u of graph G. In this paper the exact formula for two types of geometric-arithmetic index of Vphenylenic nanotube are given.

کلیدواژه‌ها
GA Index, V–phenylenic nanotube