Title of article
Geometric invariants of surfaces in
Author/Authors
Bayard، نويسنده , , Pierre and Sلnchez-Bringas، نويسنده , , Federico، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2012
Pages
9
From page
405
To page
413
Abstract
We describe some numerical invariants and their relation with the curvature ellipse attached to the second fundamental form of a surface immersed in R 4 . We provide a geometric interpretation of them. Moreover, we describe the field of asymptotic directions in terms of these invariants and study this field in a neighborhood of an isolated inflection point of imaginary type.
Keywords
Second order invariants of a surface , Curvature ellipse , Asymptotic directions
Journal title
Topology and its Applications
Serial Year
2012
Journal title
Topology and its Applications
Record number
1583199
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