| 与5-树二次整子图色多项式前三高次项系数都相同的第三类图 |
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| 引用本文： | 段颖,秦克林.与5-树二次整子图色多项式前三高次项系数都相同的第三类图[J].哈尔滨师范大学自然科学学报,2005,21(1):25-27. |
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| 作者姓名： | 段颖 秦克林 |
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| 作者单位： | 哈尔滨市第十四中学;哈尔滨市第六中学 |
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| 摘 要： | 本文给出了与5-树二次整子图色多项式前三高次项系数都相同的第三类图，从而说明了与5-树二次整子图色分划数、顶点数、边数和三角形数都相同的图，除它本身和加点5-树外，还有别的图。
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| 关 键 词： | 色等价 5-树二次整子图 加点5-树 |
| 修稿时间： | 2004年10月15 |
THIRD CLASS OF GRAPHS ITS COEFFICIENTS OF FIRST THREE HIGH DEGREE ITEMS OF CHROMATIC POLYNOMIAL ARE EQUAL TO THAT OF TWO- DEGREE INTEGRAL SUBGRAPHS OF A Q- TREE |
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| Duan Yin,Qin Kelin.THIRD CLASS OF GRAPHS ITS COEFFICIENTS OF FIRST THREE HIGH DEGREE ITEMS OF CHROMATIC POLYNOMIAL ARE EQUAL TO THAT OF TWO- DEGREE INTEGRAL SUBGRAPHS OF A Q- TREE[J].Natural Science Journal of Harbin Normal University,2005,21(1):25-27. |
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| Authors: | Duan Yin Qin Kelin |
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| Institution: | Duan Yin(Harbin Municipal 14th Middle School) Qin Kelin(Harbin Municipal 6th Middle School) |
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| Abstract: | In this paper we give out third class of graphs, its coefficients of first three high degree items of chromatic polynomial are equal to that of two-degree integral subgraphs of a q-tree. |
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| Keywords: | Chromatic equivalent Two-degree integral of 5-tree Added vertex 5-tree |
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