| 直径为4的双星图的谱排序 |
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| 引用本文： | 王娟,施劲松.直径为4的双星图的谱排序[J].青岛科技大学学报,2009,30(1). |
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| 作者姓名： | 王娟 施劲松 |
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| 作者单位： | 华东理工大学,理学院,上海,200237
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| 摘 要： | 介绍了一类直径为4的n阶树即双星图T(a,b)的谱随a变化的规律,其中a≥b≥1,a+b+3=n,n 2-3≤a≤n-4;得到了双星图T(a,b)的邻接谱半径、Laplace谱半径以及代数连通度均随a的值递增的结论,并在此基础上对这类树进行了排序。
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| 关 键 词： | 星图 树 谱 排序 |
Ordering Tree with Diameter 4 by Their Spectrum |
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| WANG Juan,SHI Jin-song.Ordering Tree with Diameter 4 by Their Spectrum[J].Journal of Qingdao University of Science and Technology:Natutral Science Edition,2009,30(1). |
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| Authors: | WANG Juan SHI Jin-song |
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| Affiliation: | School of Science;East China University of Science and Technology;Shanghai 200237;China |
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| Abstract: | The problem of ordring one kind of trees with diameter 4 which denoted as T(a,b) is introduced,where a≥b≥1,a+b+3=n,≤a≤n-4.The spectral radius and the Laplacian radius of T(a,b) are obatined.It deduced that the adjacent spectrum and Laplacian spectrum are strictly increasing functions of a respectively,the spectrum ordering is also produced. |
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| Keywords: | star tree spectrum ordering |
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