Zagreb indices of subgroup generating bipartite graph
Abstract
Let be a group and be the set of all subgroups of . The subgroup generating bipartite graph defined on is a bipartite graph whose vertex set is partitioned into two sets and , and two vertices and are adjacent if is generated by and . In this paper, we deduce expressions for first and second Zagreb indices of and obtain a condition such that satisfy Hansen-Vuki{\v{c}}evi{\'c} conjecture [Hansen, P. and Vuki{\v{c}}evi{\'c}, D. Comparing the Zagreb indices, {\em Croatica Chemica Acta}, \textbf{80}(2), 165-168, 2007]. It is shown that satisfies Hansen-Vuki{\v{c}}evi{\'c} conjecture if is a cyclic group of order , and ; dihedral group of order and ; and dicyclic group of order and for any prime . While computing Zagreb indices of we have computed for all for the above mentioned groups. Using these information we also compute Randic Connectivity index, Atom-Bond Connectivity index, Geometric-Arithmetic index, Harmonic index and Sum-Connectivity index of .
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Cite
@article{arxiv.2501.06124,
title = {Zagreb indices of subgroup generating bipartite graph},
author = {Shrabani Das and Ahmad Erfanian and Rajat Kanti Nath},
journal= {arXiv preprint arXiv:2501.06124},
year = {2025}
}
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17 pages