| 冠状系统的边界顶点的特征 |
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| 引用本文： | 魏首柳,柯小玲,张宋传.冠状系统的边界顶点的特征[J].福州大学学报(自然科学版),2006,34(4):464-466. |
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| 作者姓名： | 魏首柳 柯小玲 张宋传 |
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| 作者单位： | 闽江学院数学系,福建,福州,350108 |
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| 基金项目： | 闽江学院校科研和教改项目;福州大学校科研和教改项目 |
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| 摘 要： | 就冠状系统和广义的单冠状系统,由欧拉公式给出了其边界上的2度顶点与3度顶点的关系:冠状系统G边界上的3度顶点数等于边界上的2度顶点数加6倍的非六角形内面数,然后减6;广义的单冠状系统H边界上的2度顶点数大于其3度顶点数加2.
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| 关 键 词： | 冠状系统 顶点 边界 |
| 文章编号： | 1000-2243(2006)04-0464-03 |
| 修稿时间： | 2005年4月20日 |
Some features of boundary vertices of coronoid systems |
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| WEI Shou-liu,KE Xiao-ling,ZHANG Song-chuan.Some features of boundary vertices of coronoid systems[J].Journal of Fuzhou University(Natural Science Edition),2006,34(4):464-466. |
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| Authors: | WEI Shou-liu KE Xiao-ling ZHANG Song-chuan |
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| Institution: | (Mathematics Department of Minjiang University,Fuzhou,Fujian 350108,China) |
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| Abstract: | In this paper,we investigate the features of vertices with degree 2 and vertices with degree 3 on the boundary of coronoid system and generalized single coronoid system: the number of vertices with degree 3,on the boundary of coronoid system G,is equal to the number of ver-tices with degree 2 adds the number of nonhexagonal interior faces of G multiplied by 6,and minus 6;meantime,for a genera-lized single coronoid system H,the number of vertices with degree 2,on the boundary of generalized single coronoid system H,is more than or equal to the number of vertices with degree 3 adds 2. |
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| Keywords: | coronoid system vertex boundary |
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