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  • Mots-clés: SURFACES
The imbedding radius ?f and the roation number ? of an immersion of a Cech-circle into R2 are used to prove taht there is no tight immersion f of the Klein bottle into R3
This paper consists of two related parts. In A we present smooth maps of the real projective plane P with the non euclidean metric ?, into euclidean spaces such that we can read various interesting properties from the image. We mention and indicate…

Formats de sortie

atom, dc-rdf, dcmes-xml, json, omeka-json, omeka-xml, rss2