Weierstrass Representations of Lorentzian Minimal Surfaces in ${\mathbb{R}}_2^4$

Ognian Kassabov, Velichka Milousheva

The minimal Lorentzian surfaces in ${\mathbb{R}}_2^4$ whose first normal space is two-dimensional and whose Gauss curvature $K$ and normal curvature $\varkappa$ satisfy $K^2-\varkapp…