| 具有确定直径树的Hosoya指标极值 |
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| 引用本文： | 冶成福,殷建. 具有确定直径树的Hosoya指标极值[J]. 山东大学学报(理学版), 2008, 43(8): 14-18 |
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| 作者姓名： | 冶成福 殷建 |
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| 作者单位： | 1. 青海师范大学数学与信息科学系,青海,西宁,810008
2. 山东大学威海分校信息工程学院,山东,威海,264209 |
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| 基金项目： | 国家自然科学基金，教育部自然科学基金 |
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| 摘 要： | 图G的Hosoya指标定义为G的独立边集的总数目。令τn,d表示具有n个顶点, 直径至少为d的树集。刻画了图类τn,d中取得第二,第三最小Hosoya指标的树。
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| 关 键 词： | Hosoya指标 极值树 独立边集 |
The extremal Hosoya index of the trees with a given diameter |
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| YE Cheng-fu,YIN Jian. The extremal Hosoya index of the trees with a given diameter[J]. Journal of Shandong University, 2008, 43(8): 14-18 |
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| Authors: | YE Cheng-fu YIN Jian |
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| Affiliation: | 1. Department of Mathematics and Information Science, Qinghai Normal University, Xining 810008， Qinghai, China；2. Information Engineering Collage, Shandong University at Weihai, Weihai 264209, Shandong, China |
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| Abstract: | The Hosoya index of graph G is defined as the total number of the independent edge sets. Let τn,d denote trees having n vertices and having the diameter with the minimal length as d. The trees with the second and the third minimal Hosoya index of τn,d were characterized. |
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| Keywords: | Hosoya index extremal trees independent edge set |
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