共 50 条
A New Lower Bound for the Multiplicative Degree-Kirchhoff Index
被引:0
|作者:
Palacios, Jose Luis
[1
]
机构:
[1] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA
关键词:
RESISTANCE-DISTANCE;
GRAPHS;
D O I:
暂无
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
For G = (V, E) an arbitrary simple undirected connected graph, its multiplicative degree-Kirchhoff index is defined by R*(G) = Sigma(i<j) d(i)d(j).R-ij. We show that R* (G) >= n - 1 + 2 vertical bar E vertical bar(n - 2), and the equality is attained by the complete graph K-n, and the star graph S-n.
引用
收藏
页码:251 / 254
页数:4
相关论文