Let P be the affine group of the real line R, and let H be the set of all quaternions.
设P是实直线R上的仿射群，H为所有四元数的集合。
参考来源 - 四元数值函数的小波变换及多尺度分析
·2,447,543篇论文数据，部分数据来源于NoteExpress
Affine group
abstract:In mathematics, the affine group or general affine group of any affine space over a field K is the group of all invertible affine transformations from the space into itself.