本文研究了带根4-正则单行平面地图的计数问题,并给出了以其非根点数和两个奇点次为三个参数的一些计数公式.
This paper investigates the number of rooted 4-regular unicursal planar maps and presents some formulae for such maps with three parameters: the number of nonrooted vertices and the valencies of two odd vertices.