Umbilic and Tangential Singularities on Configurations of Principal Curvature Lines
نویسندگان
چکیده
In this paper is studied the relationship between quadratic tangencies of principal lines with the boundary of a surface and the Darbouxian umbilics of a smooth boundaryless surface which approximates it through the process of thickening and smoothing defined here.
منابع مشابه
Structurally Stable Configurations of Lines of Mean Curvature and Umbilic Points on Surfaces Immersed in R
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