Versality of Rotation Unfolding of Folding Maps for Surfaces in ${\mathbb{R}}^3$

Toshizumi Fukui, Atsuki Hiramatsu

We introduce the rotation unfolding of the folding map of a surface in ${\mathbb{R}}^3$, and investigate its $\mathcal{A}$-vesality. The rotation unfolding is a 2-parameter unfolding…