Volume 25 • Issue 3 • PP: 312-321 • 2025
Computation of Weighted PI Index of Lexicographic product graphs and for Silicates Networks
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© 2025 The Author(s). Published by ASPG. This article is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
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The study of chemical compounds’ molecular structures is one of the most cutting-edge uses of graph theory,
along with computer science, nanochemistry, network design in electrical and electronic engineering, and the
depiction of graphs in Google Maps. The degree and distance between vertices of a graph are the basis for
examining topological indices. The formula for computing the Weighted Padmakar Ivan index (WPI) of a
graph G is
PIw(G) = P e∈E(G)
[(dG(u) + dG(v)][|V (G)| − NG(e)].
Keywords
References
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