Resistance distance and Kirchhoff index of R-vertex join and R-edge join of two graphs
Resistance distance and Kirchhoff index of R-vertex join and R-edge join of two graphs
复制标题
两个图的R-顶点连接和R-边连接的阻力距离和基尔霍夫指数
DOI:
10.1016/j.dam.2015.02.021
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发表时间:
2015-05
影响因子:
1.1
通讯作者:
Bu Changjiang
中科院分区:
文献类型:
--
作者:
Liu Xiaogang;Zhou Jiang;Bu Changjiang
Abstract Let G=(V (G), E (G)) be a graph with vertex set V (G) and edge set E (G). The R-graph of a graph G, denoted by R (G), is the graph obtained from G by adding a vertex v e and then joining v e to the end vertices of e for each e∈ E (G). Let G 1 and G 2 be two vertex disjoint graphs. The R-vertex join of G 1 and G 2, denoted by G 1< v> G 2, is the graph obtained from R (G 1) and G 2 by joining every vertex of V (G 1) with every vertex of V (G 2). The R-edge join of G 1 and G 2, denoted by G 1< e> G 2, is the graph obtained from R (G 1) and G 2 by joining every vertex of I (G 1) with every vertex of V (G 2), where I (G 1) is the set of the added vertices of R (G 1). In this paper, we formulate the resistance distances and the Kirchhoff index of G 1< v> G 2 and G 1< e> G 2 respectively.
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