Cactus graphs with minimum edge revised Szeged index
Cactus graphs with minimum edge revised Szeged index
复制标题
具有最小边修正 Szeged 指数的仙人掌图
DOI:
10.1016/j.dam.2018.03.037
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发表时间:
2018-10
影响因子:
1.1
通讯作者:
Shujing Wang
中科院分区:
文献类型:
--
作者:
Mengmeng Liu;Shujing Wang
The edge revised Szeged index Sz e∗(G) is defined as S z e∗(G)=∑ e= u v∈ E (m u (e)+ m 0 (e)∕ 2)(m v (e)+ m 0 (e)∕ 2), where m u (e) and m v (e) are, respectively, the number of edges of G lying closer to vertex u than to vertex v and the number of edges of G lying closer to vertex v than to vertex u, and m 0 (e) is the number of edges equidistant to u and v. A cactus graph is a connected graph in which every block is an edge or a cycle. In this paper, we give a lower bound of the edge revised Szeged index among all m-edges cactus graphs with k cycles, and also characterize those graphs that achieve the lower bound. We also obtain the second minimum edge revised Szeged index for connected cactus graphs of size m with k cycles.
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DOI:
10.1016/j.amc.2017.03.036
发表时间:
2017-09
期刊:
Appl. Math. Comput.
影响因子:
--
作者:
Shujing Wang
通讯作者:
Shujing Wang
DOI:
--
发表时间:
1993-08
期刊:
--
影响因子:
--
作者:
I. Gutman;Y. Yeh;Shyi-Long Lee;Yeung-Long Luo
通讯作者:
I. Gutman;Y. Yeh;Shyi-Long Lee;Yeung-Long Luo
DOI:
10.26493/1855-3974.68.51b
发表时间:
2009-01
期刊:
Ars Math. Contemp.
影响因子:
--
作者:
T. Pisanski;J. Žerovnik
通讯作者:
T. Pisanski;J. Žerovnik
影响因子:
2.6
作者:
D. Vukičević
通讯作者:
D. Vukičević
影响因子:
6.7
作者:
Xiaochun Cai;Bo Zhou
通讯作者:
Xiaochun Cai;Bo Zhou