研究了带根双奇异平面地图的计数问题,提供了以根面次、度和非根点数为参数的计数函数所满足的计数方程,并且导出了一些计数显式.
This work provided enumerating equations satisfied by enumerating functions with valency of root-face, size, number of non-root-vertices as parameters. Moreover, some explicit expressions of these functions were also derived.