Geodesic
On double-ruled hypersurfaces in $\bold R^4$
Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 2, pp. 407-411 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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We classify locally the induced Riemannian metrics of all irreducible double-ruled hypersurfaces in $\boldkey R^4$.
We classify locally the induced Riemannian metrics of all irreducible double-ruled hypersurfaces in $\boldkey R^4$.
Classification : 53A07, 53B20, 53C20, 53C40, 53C42
Keywords: Riemannian manifold; ruled hypersurface 
@article{CMUC_1997_38_2_a22,
     author = {Kowalski, Old\v{r}ich and Vl\'a\v{s}ek, Zden\v{e}k},
     title = {On double-ruled hypersurfaces in $\bold R^4$},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {407--411},
     year = {1997},
     volume = {38},
     number = {2},
     mrnumber = {1455509},
     zbl = {0891.53005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1997_38_2_a22/}
}
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Kowalski, Oldřich; Vlášek, Zdeněk. On double-ruled hypersurfaces in $\bold R^4$. Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 2, pp. 407-411. http://geodesic.mathdoc.fr/item/CMUC_1997_38_2_a22/