Title of article :
F-leap index of some special classes of bridge and chain graphs
Author/Authors :
Mohammed ، Mohanad Ali Department of Mathematics - Open Educational College, Al-Qadisiya Centre - Ministry of Education , Haoer ، Raad Sehen Department of Mathematics - Open Educational College, Al-Qadisiya Centre - Ministry of Education , Robert ، Janet Department of Mathematics - Srinivasa Ramanujan Centre - SASTRA Deemed University , Chidambaram ، Natarajan Department of Mathematics - Srinivasa Ramanujan Centre - SASTRA Deemed University , Devadoss ، Narasimhan Department of Mathematics - Srinivasa Ramanujan Centre - SASTRA Deemed University
Abstract :
The 2-degree of a vertex v in a (molecular) graph G is the number of vertices which are at distance two from v in G. The F-leap index of a molecular graph G is the sum of cubes of the 2-degree of every vertex v in G. In this research study, we have computed the F-leap index of some special classes of bridges and chain graphs. We also have determined the F-leap index of some chemical structures including polyphenyl chains and spiro chains.
Keywords :
Leap Zagreb indices , F , leap index , bridge , polyphenyl chain , spiro chain
Journal title :
Eurasian Chemical Communications
Journal title :
Eurasian Chemical Communications
