The Crossing Number of Two-Maps on Orientable Surfaces

来源 :数学研究与评论:英文版 | 被引量 : 0次 | 上传用户:yinqing68
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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 w
其他文献
During the time of the Tubo Kingdom in the 7th century, the ancestors of Dorgar Puncog Raogyi assisted Tibetan King Songtsan Gambo in governing.
期刊
Tibetan garment adornments are largely identical, although with some minor differences, and the adornments of Amdo are a major branch.
This is the Tibetan Year of Horse, a year in which the Tibetans think they will have good luck if they can walk around the holy mountain of Kangrenboqe. As a ma
期刊
本文分析了10种国产胡枝子的核型,对它们之间的关系进行了讨论。它们的核型公式如下:二色胡枝子的为2n=22=14m+6sm+2T(SAT),短穗胡枝子的为2n=22=14m+6sm+2T(SAT),美丽胡枝子
期刊
对发生开裂的天然气管道进行了系统的分析与测试,如宏观分析、成分分析、金相组织分析、硬度测试、氢含量测试、扫描电镜观察等。结果表明,管道开裂的机理为氢致开裂,管道局