Old\v{r}ich Kowalski, Zden\v{e}k Vl\'a\v{s}ek

Old\v{r}ich Kowalski, Zden\v{e}k Vl\'a\v{s}ek
On double-ruled hypersurfaces in $\pmb R^{4}$

Comment.Math.Univ.Carolinae 38,2 (1997) 407-411.

Abstract:We classify locally the induced Riemannian metrics of all irreducible double-ruled hypersurfaces in ${\fam \cmmibfam R}^4$.

Keywords: Riemannian manifold, ruled hypersurface
AMS Subject Classification: 53C20, 53C42, 53B20