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摘要: |
对于简单的连通图G,它的零阶广义Randic指数Ra(G)定义为Σε∈v(G)[dc(v)]α,其中α是一个给定的实数,dc(v)是G中顶点v的度。简单连通图G的零阶广义Randic指数是化学图论中的一个重要的拓扑指数,其在化学领域中有着广泛的研究及应用,基于此对于任意的α(≠0,1),它给出了顶点个数为n,悬挂点为k的所有三圈图的零阶广义Randic指数Rα的一些紧的界。 |
关键词: 三圈图 零阶广义Randic指数 悬挂点 紧的界 |
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Zeroth-order General Randic Index of Tricyclic Graphs with Given Pendent Vertices |
ZHAN Li-li,LIU Su-qin
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Abstract: |
Let G be a simply connected graph and α be a given real number,the zeroth-order general Randic index of Rα(G)is defined as Σε∈v(G)[dc(v)]α,wherer a is a given real number and dG(v) denotes the degree vertex v of G.The zeroth-order general Randic index of the simply connected graph G is one of the most chemistry... |
Key words: tricyclic gragh zero-order general Randic index pendent vertex sharp bound |