F-leap index of some special classes of bridge and chain graphs
Eurasian Chemical Communications , Volume 2, pp 827-833; https://doi.org/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.
Keywords: Structures / Special Classes / chain graphs / classes of bridge / bridges and chain / leap index
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