| 关于直径为4的整树的注记 |
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| 引用本文： | 徐大申.关于直径为4的整树的注记[J].青海大学学报,1996,14(2):16-18. |
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| 作者姓名： | 徐大申 |
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| 作者单位： | 青海大学基础部 |
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| 摘 要： | 文献（２）肯定了直径４的整树的存在，袁平之给出了构造直径４的整树的方法，本文回答了他提出但没有解决的一个问题，指出存在无穷多个直径为４且ｒ为偶数的整树Ｓ（ｒ，ｍｉ），并给出了这些整树的具体构造及它们的谱。
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| 关 键 词： | 整树 直径 谱 整图 图 |
A Note on the Integral Trees Which Are Diameter 4 |
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| Xu Dashen.A Note on the Integral Trees Which Are Diameter 4[J].Journal of Qinghai University(Natural Science),1996,14(2):16-18. |
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| Authors: | Xu Dashen |
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| Institution: | Department of Basic Sciences of Qinghai University |
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| Abstract: | This paper shows the existence of infinitely many integral trees S(r,m1) which are di-ameter 4,when r is even number. Their concrete structure and spectra are presented. Thus answered a question in Yuan Pinzhi's article. |
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| Keywords: | Integral tree Diameter Spectrum |
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