Embedding and surrounding with positive mean curvature.
H.B., Jr Lawson, M.-L. Michelsohn (1984)
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H.B., Jr Lawson, M.-L. Michelsohn (1984)
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N.H. KUIPER (1970)
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Viktor Schroeder (1985)
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Rolf Walter, Norbert Kleinjohann (1982)
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Ronaldo García, Jorge Sotomayor (2001)
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In this paper we study the pairs of orthogonal foliations on oriented surfaces immersed in R whose singularities and leaves are, respectively, the umbilic points and the lines of normal mean curvature of the immersion. Along these lines the immersions bend in R according to their normal mean curvature. By analogy with the closely related Principal Curvature Configurations studied in [S-G], [GS2], whose lines produce the extremal for the immersion, the pair of foliations by lines of...
K.D. Elworthy, Steven Rosenberg (1991)
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Haesen, Stefan, Verpoort, Steven (2010)
Beiträge zur Algebra und Geometrie
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