Parametric CR-umbilical Locus of Ellipsoids in ${\mathbb{C}}^2$

Wei-Guo Foo, Joel Merker, The-Anh Ta

For every real numbers $a⩾1$, $b⩾1$ with $(a,b)\ne (1,1)$, the curve parametrized by $\theta \in \mathbb{R}$ valued in ${\mathbb{C}}^2\cong {\mathbb{R}}^4$ \[ γ\, \col…