A characterisation of the Calabi product of hyperbolic affine spheres

Zejun Hu, Haizhong Li, Luc Vrancken

There exists a well known construction which allows to associate with two hyperbolic affine spheres $f_i:M_i^{n_i}\to {\mathbb{R}}^{n_i+1}$ a new hyperbolic affine sphere immersion…