The Crossing Number of Two-Maps on Orientable Surfaces

被引：0

作者：

Yong Xiang WU Han REN Tu XU Department of Mathematics Education Resource CenterNingbo PolytechnicZhejiang PRChinaDepartment of MathematicsEast China Normal UniversityShanghai PRChina ^{[1
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机构：

来源：

数学研究与评论 | 2011年 / 31卷 / 04期

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D O I：

暂无

中图分类号：

O157.5 [图论];

学科分类号：

070104 ;

摘要：

In this paper,we discuss the crossing numbers of two one-vertex maps on orientable surfaces.By using a reductive method,we give the crossing number of two one-vertex maps with one face on an orientable surface and the crossing number of a one-vertex map with one face and a one-vertex map with two faces on an orientable surface.This provides a lower bound for the crossing number of two general maps on an orientable surface.

引用

页码：643 / 648

页数：6