Lines of curvature on surfaces immersed in ℝ4
Boletim da Sociedade Brasileira de Matemática - Bulletin/Brazilian Mathematical Society - Tập 28 - Trang 233-251 - 1997
Tóm tắt
The differential equation of thelines of curvature for immersions of surfaces into ℝ4 is established. It is shown that, for a class of generic immersions of a surface into ℝ4 in theC
r
-topology,r≥4, all of the umbilic points are locally topologically stable. This type of umbilic points is described.
Tài liệu tham khảo
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