Geodesic
About a problem of Ulam concerning flat sections of manifolds.
Commentarii mathematici Helvetici, Tome 65 (1990) no. 3, pp. 462-473.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : problem of Ulam, acyclic sections, topologically embedded manifold, convex body, convex surface, flat sections, n-dimensional manifold, closed surface, Čech-cohomology 
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     author = {Luis Montejano},
     title = {About a problem of {Ulam} concerning flat sections of manifolds.},
     journal = {Commentarii mathematici Helvetici},
     pages = {462--473},
     publisher = {mathdoc},
     volume = {65},
     number = {3},
     year = {1990},
     zbl = {0719.57015},
     url = {http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140207/}
}
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Luis Montejano. About a problem of Ulam concerning flat sections of manifolds.. Commentarii mathematici Helvetici, Tome 65 (1990) no. 3, pp. 462-473. http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140207/