Web of Science (Emerging Sources Citation Index)

Document Type: Original Research Article

Authors

1 Department of Mathematics, Open Educational College, Ministry of Education, Al-Qadisiya Centre, Iraq

2 Department of Mathematics, Open Educational College, Ministry of Education, Al-Qadisiya Centre, Iraq

3 Department of Mathematics, Srinivasa Ramanujan Centre, SASTRA Deemed University, Kumbakonam, Tamil Nadu, India

4 Department of Mathematics, Srinivasa Ramanujan Centre, SASTRA Deemed University, Kumbakonam, Tamil Nadu, India

10.33945/SAMI/ECC.2020.7.10

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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