A map is a 2-cell embedding of a graph on the surface. If the surface is the plane, or the sphere, the map is called a planar map. A map is said to be rooted, if one of its edges is marked with a direction chosen beforchand. The marked edge is called the root-edge; its ...
1) nonseparable graph 不可分图 2) nonseparable maps 不可分地图 1. In this paper,the chromatic sum function equations is given for rootednonseparable mapson the sphere and the projective plane. 给出了球面和射影平面上带根不可分地图的色和方程,从色和方程导出了球面和射影平面上带根一般不可分地图...
In this paper,the chromatic sum function equations is given for rootednonseparable mapson the sphere and the projective plane. 给出了球面和射影平面上带根不可分地图的色和方程,从色和方程导出了球面和射影平面上带根一般不可分地图、二部地图的计数函数方程。