The asymptotic blow-up of a surface in E
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Marek Kossowski
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Article
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1991
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Springer
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English
โ 544 KB
Given a smoothly immersed surface in Euclidean (or affine) 3-space, the asymptotic directions define a subset in the Grassmann bundle of unoriented one-dimensional subspaces over the surface. This links the Euler characteristic of the region where the Gauss curvature is nonpositive with the index of