Computing weighted Szeged and PI indices from quotient graphs
نویسندگان
چکیده
منابع مشابه
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The vertex Padmakar-Ivan (PIv) index of a graph G was introduced as the sum over all edges e = uv of G of the number of vertices which are not equidistant to the vertices u and v. In this paper we provide an analogue to the results of T. Mansour and M. Schork [The PI index of bridge and chain graphs, MATCH Commun. Math. Comput. Chem. 61 (2009) 723-734]. Two efficient formulas for calculating th...
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متن کاملComputing PI and Hyper–Wiener Indices of Corona Product of some Graphs
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ژورنال
عنوان ژورنال: International Journal of Quantum Chemistry
سال: 2019
ISSN: 0020-7608,1097-461X
DOI: 10.1002/qua.26006