k-一致超图的Laplacian谱的界 |
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引用本文: | 苗胜军,常安.k-一致超图的Laplacian谱的界[J].曲阜师范大学学报,2002,28(1):41-44. |
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作者姓名: | 苗胜军 常安 |
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作者单位: | [1]威海教育学院数学系,山东省威海市264200 [2]福州大学数学系,福建省福州市350002 |
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摘 要: | 讨论了k-一致超图的Laplacian谱的问题,分别得到了k-一致超图的Laplacian谱的上界和下界,并由此推得k-一致超图的Laplacian矩阵是正定矩阵。
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关 键 词: | k-图 Laplacian矩阵 界 超图理论 k-一致超图 Laplacian谱 正定矩阵 |
文章编号: | 1001-5337(2002)01-0041-04 |
修稿时间: | 2001年5月4日 |
Bounds on the laplacian spectrum of a k-uniform hypergraph |
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Abstract: | In this paper, the bounds on the Laplacian spectrum of a k-uniform hypergraph are studied. An upper bound and a lower bound on the Laplacian spectrum of a k-uniform hypergraph are obtained, respectively. Furthermore, by these results, the authors recognize that the Laplacian matrix of a k-uniform hypergraph is a positive definite matrix. |
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Keywords: | k-graph Laplacian matrix bound |
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