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K5×Sn的交叉數(shù)

時間:2023-04-26 21:29:24 數(shù)理化學論文 我要投稿
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K5×Sn的交叉數(shù)

By connecting the 5 vertices of K5 to other n vertices, we obtain a special family of graph denoted by Hn. This paper proves that the crossing number of Hn is Z(5, n) +2n+[n/2] 1, and the crossing number of Cartesian products of K5 with star Sn is Z(5, n) + 5n + [n/2]+1.

作 者: 呂勝祥 黃元秋 L(U) Sheng Xiang HUANG Yuan Qiu   作者單位: 呂勝祥,L(U) Sheng Xiang(Department of Mathematics, Beijing Jiaotong University, Beijing 100044, China)

黃元秋,HUANG Yuan Qiu(Department of Mathematics, Normal University of Hunan, Hunan 410081, China) 

刊 名: 數(shù)學研究與評論  ISTIC PKU 英文刊名: JOURNAL OF MATHEMATICAL RESEARCH AND EXPOSITION  年,卷(期): 2008 28(3)  分類號: O157.5  關(guān)鍵詞: graph   drawing   crossing number   star   Cartesian products  

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