Umbilic and Tangential Singularities on Configurations of Principal Curvature Lines
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.<br>Neste trabalho são estuda...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Academia Brasileira de Ciências
2002-03-01
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| Series: | Anais da Academia Brasileira de Ciências |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100001 |