4 citations · 4 across the 3 of their papers we have counts for
3 papers
math.DG2021★ 4 cited
Singularities of 3-parameter line congruences in
Débora Lopes, Maria Aparecida Soares Ruas, Igor Chagas Santos
In this paper, we give the generic classification of the singularities of 3-parameter line congruences in . We also classify the generic singularities of Blaschke (af…
math.DG2014
Partially umbilic singularities of hypersurfaces of
Débora Lopes, Jorge Sotomayor, Ronaldo Garcia
This paper establishes the geometric structure of the lines of principal curvature of a hypersurface immersed in in a neighborhood of the set of its p…
math.DS2014
Umbilic Singularities and Lines of Curvature on Ellipsoids of
Débora Lopes, Jorge Sotomayor, Ronaldo Garcia
The topological structure of the lines of principal curvature, the umbilic and partially umbilic singularities of all tridimensional ellipsoids of is described.