Document Type : Original Research Article
Authors
- Mohanad Ali Mohammed 1
- Raad Sehen Haoer 1
- Janet Robert 2
- Natarajan Chidambaram 2
- Narasimhan Devadoss 2
1 Department of Mathematics, Open Educational College, Ministry of Education, Al-Qadisiya Centre, Iraq
2 Department of Mathematics, Srinivasa Ramanujan Centre, SASTRA Deemed University, Kumbakonam, Tamil Nadu, India
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.
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