图 书 馆
可定向 - 规则地图的手性，属性和简单性Chirality, genera and simplicity of orientably-regular maps |
|
| 课程网址: | http://videolectures.net/sicgt07_conder_cgas/ |
| 主讲教师: | Marston Conder |
| 开课单位: | 奥克兰大学 |
| 开课时间: | 2007-09-07 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | An orientably-regular map is a cellular embedding of a graph or multigraph in an orientable-surface, with the property that the group of orientation- and incidencepreserving automorphisms has a single orbit on the arcs (ordered edges) of the embedding. I will describe a recent computer-assisted determination of all such maps on surfaces of genus 2 to 100, which revealed some interesting patterns, leading to new discoveries about gaps in the genus spectrum of examples that (a) are chiral, and/or (b) have the property that the map or its topological dual has simple underlying graph. The last part is joint work with Jozef Siran and Tom Tucker. |
| 关 键 词: | 可定向规则图; 地图; 底层图 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-09-17：lxf |
| 阅读次数: | 56 |