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A Note on the Kirchhoff and Additive Degree-Kirchhoff Indices of Graphs
被引:13
|作者:
Yang, Yujun
[1
]
Klein, Douglas J.
[2
]
机构:
[1] Yantai Univ, Sch Math & Informat Sci, Yantai 264005, Shandong, Peoples R China
[2] Texas A&M Univ, Dept Marine Sci, Galveston, TX 77553 USA
来源:
基金:
中国博士后科学基金;
美国国家科学基金会;
关键词:
Additive Degree-Kirchhoff Index;
Average Degree;
Kirchhoff Index;
Maximum Degree;
Minimum Degree;
Resistance Distance;
RESISTANCE DISTANCE;
LOWER BOUNDS;
SUBDIVISIONS;
WIENER;
D O I:
10.1515/zna-2014-0274
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Two resistance-distance-based graph invariants, namely, the Kirchhoff index and the additive degree-Kirchhoff index, are studied. A relation between them is established, with inequalities for the additive degree-Kirchhoff index arising via the Kirchhoff index along with minimum, maximum, and average degrees. Bounds for the Kirchhoff and additive degree-Kirchhoff indices are also determined, and extremal graphs are characterised. In addition, an upper bound for the additive degree-Kirchhoff index is established to improve a previously known result.
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页码:459 / 463
页数:5
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