| 完全3-部图的无符号Laplace谱 |
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| 引用本文： | 卢世芳,卫良,赵海兴.完全3-部图的无符号Laplace谱[J].山东大学学报(理学版),2012,47(12):41-46. |
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| 作者姓名： | 卢世芳 卫良 赵海兴 |
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| 作者单位： | 1.青海大学基础部, 青海 西宁 810016; 2.青海师范大学数学与信息科学系, 青海 西宁 810008 |
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| 基金项目： | 科技部973前期研究专项(2010CB334708);国家自然科学基金资助项目(60863006);青海大学自然科学基金资助项目(2011-QGY-8) |
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| 摘 要： | 给出了完全3-部图Km,n,l是Q-整图的充分必要条件,同时,通过计算构造了无穷多个Q-整的完全3-部图。
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| 关 键 词： | 无符号Laplace谱 Q-整图 完全3-部图 |
| 收稿时间： | 2011-10-14 |
On signless Laplace integral graphs of complete tripartite graphs |
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| LU Shi-fang,WEI Liang,ZHAO Hai-xing.On signless Laplace integral graphs of complete tripartite graphs[J].Journal of Shandong University,2012,47(12):41-46. |
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| Authors: | LU Shi-fang WEI Liang ZHAO Hai-xing |
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| Institution: | 1. Department of Basic Research, Qinghai University, Xining 810016, Qinghai, China;
2. Department of Mathematics and Information Science, Qinghai Normal University, Xining 810008, Qinghai, China |
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| Abstract: | Necessary and sufficient conditions are obtained for complete tripartite graphs Km,n,l being Q-integral, and infinitely many new classes of such Q-integral graphs constructed. |
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| Keywords: | signless Laplace spectrum Q-integral graphs the complete tripartite graphs |
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