Flexibility of Embeddings of a Halin Graph in the Torus
- ISSN号:1002-0462
- 期刊名称:《数学季刊:英文版》
- 时间:0
- 分类:O157.5[理学—数学;理学—基础数学]
- 作者机构:[1]School of Science, Nantong University, Nantong 226007, China, [2]Department of Mathematics, East China Normal University, Shanghai 200062, China
- 相关基金:Foundation item: Supported by the NNSF of China(10671073); Supported by the NSF of Jiangsu's Universities(07KJB110090)
中文摘要:
在这份报纸,我们证明任何在花托嵌入一张 Halin 图(平面图的一种类型) 的脸宽度是一个,并且为在花托决定一张 Halin 图的所有 nonequivalent embeddings 的数字给一个公式。
英文摘要:
In this paper we show that the face-width of any embedding of a Halin graph(a type of planar graph) in the torus is one, and give a formula for determining the number of all nonequivalent embeddings of a Halin graph in the torus.