| 四圈图的Spread |
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| 引用本文： | 陈琳.四圈图的Spread[J].数学学报,2012(2):341-350. |
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| 作者姓名： | 陈琳 |
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| 作者单位： | 新疆医科大学医学工程技术学院 |
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| 摘 要： | 图的spread定义为图的邻接矩阵的最大特征值与最小特征值的差.本文确定了n(n≥84)顶点四圈图中spread最大的唯一的图.
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| 关 键 词： | 四圈图 嵌套分裂图 双嵌套图 |
The Spread of Tetracyclic Graphs |
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| Lin CHEN.The Spread of Tetracyclic Graphs[J].Acta Mathematica Sinica,2012(2):341-350. |
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| Authors: | Lin CHEN |
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| Institution: | Lin CHEN College of Medical Engineering and Technology, Xinjiang Medical University,Urumqi 830011,P.R.China |
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| Abstract: | The spread of a graph is defined to be the difference between the greatest eigenvalue and the least eigenvalue of the adjacency matrix of the graph.In this paper we determine the unique graph with maximum spread among all tetracyclic graphs on n vertices when n≥84. |
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| Keywords: | tetracyclic graph nested split graph double nested graph |
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