Extremal reformulated forgotten index of trees, unicyclic and bicyclic graphs

Author:

Sarkar Ishita1,Nanjappa Manjunath1,Gutman Ivan2ORCID

Affiliation:

1. Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, India

2. Faculty of Science, University of Kragujevac, Kragujevac, Serbia

Abstract

The reformulated forgotten index (RF) is the edge version of the ordinary forgotten index. We describe graph transformations, by means of which RF increases or decreases. Using these transformations, the trees, unicyclic, and bicyclic graphs extremal w.r.t. RF are characterized.

Publisher

National Library of Serbia

Reference16 articles.

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5. O. Colakoglu Havare, A. K. Havare, Computation of the forgotten topological index and co-index for carbon base nanomaterial, Polyc. Arom. Comp. 42 (2022), 3488-3500.

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