| 几类图的Signless Laplacian 特征多项式 |
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| 引用本文： | 卢世芳. 几类图的Signless Laplacian 特征多项式[J]. 青海大学学报, 2009, 27(4): 42-44,52 |
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| 作者姓名： | 卢世芳 |
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| 作者单位： | 青海大学基础部,青海,西宁,810016 |
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| 摘 要： | 对于一个简单图G，称矩阵Q（G）=D（G）＋A（G）是图G的Signless Laplacian矩阵，多项式QG（λ）=det（λI—Q）是图G的特征多项式。本文给出了在完全二部图K2,a-2上两种不同的加边方式所得图类和在C3的一个顶点上悬挂P=n-3条边所得图类的Signless Laplacian矩阵特征多项式。
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| 关 键 词： | 图 Signless Laplacian 特征多项式 完全二部图 3-圈 |
Signless Laplacian characteristic polynomial on several types of graphs |
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| LU Shi-fang. Signless Laplacian characteristic polynomial on several types of graphs[J]. Journal of Qinghai University(Natural Science), 2009, 27(4): 42-44,52 |
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| Authors: | LU Shi-fang |
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| Affiliation: | Department of Basic Research;Qinghai University;Xining 810016;China |
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| Abstract: | For a simple graph G, matrix Q （G） = D（G） ＋ A （G） is its Signless Laplacian matrix and polynomial QG（λ） = det（λI-Q） is its signless Laplacian characteristic polynomial. In this paper, the signless Laplacian eharacferistie polynomials of the graphs obtained through two Kinds of differeut adding - edge ways to the complete bipartite graph K2,n=2 and of the graphs obtained through appending p = n - 3 edgs to a top point of 3 - circle C3 are given out. |
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| Keywords: | Signless Laplacian |
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