| 给定独立数的无符号拉普拉斯谱半径的下界 |
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| 引用本文： | 宋海平,叶淼林.给定独立数的无符号拉普拉斯谱半径的下界[J].安庆师范学院学报(自然科学版),2011,17(1):10-12,15. |
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| 作者姓名： | 宋海平 叶淼林 |
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| 作者单位： | 安庆师范学院,数学与计算科学学院,安徽,安庆,246133;安庆师范学院,数学与计算科学学院,安徽,安庆,246133 |
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| 摘 要： | 设图G为简单连通图,图G的独立数α=α(G)指的是图中顶点独立集最大基数,本文确定了给定独立数α=n-2,n-3条件下一类n阶连通图的无符号拉普拉斯谱半径的下界。
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| 关 键 词： | 图 独立数 无符号拉普拉斯谱半径 下界 |
A Lower Bounds of Signless Laplacian Spectral Radius with Given Independence Number |
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| SONG Hai-ping,YE Miao-lin.A Lower Bounds of Signless Laplacian Spectral Radius with Given Independence Number[J].Journal of Anqing Teachers College(Natural Science Edition),2011,17(1):10-12,15. |
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| Authors: | SONG Hai-ping YE Miao-lin |
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| Institution: | SONG Hai-ping,YE Miao-lin (School of Mathematics and Computational Science,Anqing Teachers College,Anqing 246133,China) |
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| Abstract: | The graphs here considered are connected and simple.The independence number α=α(G) of G is defined as the maximum cardinality of an independent set.we determine the graphs which have lower bounds of Signless Laplacian spectral radius among all the connected graphs of order n with given independence number α=n-2,n-3. |
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| Keywords: | graph independence number Signless Laplacian spectral radius lower bounds |
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