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Contact properties of surfaces in r-3 with corank 1 singularities
(Tohoku University, 2015-03-01)
We study the geometry of surfaces in R-3 with corank 1 singularities. At a singular point we define the curvature parabola using the first and second fundamental forms of the surface, which contains all the local second ...
Analysis of the Finite Element Method for the Laplace–Beltrami Equation on Surfaces with Regions of High Curvature Using Graded Meshes
(Springer New York LLC, 2017)
We derive error estimates for the piecewise linear finite element approximation of the Laplace–Beltrami operator on a bounded, orientable, (Formula presented.), surface without boundary on general shape regular meshes. As ...
Contact properties of surfaces in r-3 with corank 1 singularities
(Tohoku University, 2015)
Behavior of gaussian curvature and mean curvature near non-degenerate singular points on wave fronts
(2016-01-01)
We define cuspidal curvature Kc (resp. normalized cuspidal curvature μc) along cuspidal edges (resp. at a swallowtail singularity) in Riemannian 3-manifolds, and show that it gives a coefficient of the divergent term of ...
Invariant surfaces of a three-dimensional manifold with constant Gauss curvature
(Elsevier Science BvAmsterdamHolanda, 2005)
A machine learning strategy for computing interface curvature in Front-Tracking methods
(2022-02-01)
In this work we have described the application of a machine learning strategy to compute the interface curvature in the context of a Front-Tracking framework. Based on angular information of normal and tangential vectors ...
Finite topology self-translating surfaces for the mean curvature flow in R3
(Elsevier, 2017)
Finite topology self-translating surfaces for the mean curva-ture flow constitute a key element in the analysis of TypeII singularities from a compact surface because they arise as lim-its after suitable blow-up scalings ...
Contact properties of surfaces in r-3 with corank 1 singularities
(Tohoku University, 2015)
Flexible linear array with curvature sensor
(IPEN ; UFSCar ; UNESPJoão Pessoa, 2013-11-09)
In this work a 2-MHz flexible transducer probe more compact and capable of being attached directly over the surface was developed. An extra curvature sensor based on strain gauge construction embedded in the same flexible ...