On BC-Subtrees in Multi-Fan and Multi-Wheel Graphs

The BC-subtree (a subtree in which any two leaves are at even distance apart) number index is the total number of non-empty BC-subtrees of a graph, and is defined as a counting-based topological index that incorporates the leaf distance constraint. In this paper, we provide recursive formulas for co...

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Bibliographic Details
Main Authors: Yu Yang, Long Li, Wenhu Wang, Hua Wang
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/1/36