Space curves and their duals.
Portugaliae mathematica, Tome 54 (1997) no. 1, pp. 95-100.

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

Keywords: dual of a space curve, unit spheres, circular cones, regular homotopy
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     author = {Craveiro de Carvalho, F.J. and Robertson, S.A.},
     title = {Space curves and their duals.},
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Craveiro de Carvalho, F.J.; Robertson, S.A. Space curves and their duals.. Portugaliae mathematica, Tome 54 (1997) no. 1, pp. 95-100. http://geodesic.mathdoc.fr/item/PORMA_1997__54_1_47816/