ABC Index of Trees with Fixed Number of Leaves

被引:0
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作者
Goubko, Mikhail [1 ]
Magnant, Colton [2 ]
Nowbandegani, Pouria Salehi [2 ]
Gutman, Ivan [3 ,4 ]
机构
[1] Russian Acad Sci, Trapeznikov Inst Control Sci, Moscow, Russia
[2] Georgia So Univ, Dept Math Sci, Statesboro, GA 30460 USA
[3] Univ Kragujevac, Fac Sci, Kragujevac 34000, Serbia
[4] State Univ Novi Pazar, Novi Pazar, Serbia
关键词
TOPOLOGICAL INDEXES;
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中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Given a graph G, the atom-bond connectivity (ABC) index is defined to be ABC(G) = Sigma Euv is an element of E(G)root d(G)(u)+d(G)(v)-2/d(G)(u)d(G)(v), where E(G) is the edge set of graph G and d(G)(v) is the degree of vertex v in graph G. The paper [10] claims to classify tho trees with a fixed number of leaves which minimize the ABC index. Unfortunately, there is a gap in the proof, leading to other examples that contradict the main result of that work. These examples and the problem are discussed in this note.
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页码:697 / 702
页数:6
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