48 search results - page 3 / 10 » Discrete Laplace-Beltrami operators and their convergence |
SODA
2010
ACM
14 years 3 months ago
2010
ACM
Spectral methods have been widely used in a broad range of application fields. One important object involved in such methods is the Laplace-Beltrami operator of a manifold. Indeed...
GMP
2006
IEEE
14 years 5 days ago
2006
IEEE
In geometric modeling and processing, computer graphics and computer vision, smooth surfaces are approximated by discrete triangular meshes reconstructed from sample points on the...
CORR
2006
Springer
13 years 6 months ago
2006
Springer
Given a sample from a probability measure with support on a submanifold in Euclidean space one can construct a neighborhood graph which can be seen as an approximation of the subm...
DAM
2008
13 years 6 months ago
2008
We present here a systematic study of general boundary value problems on weighted networks that includes the variational formulation of such problems. In particular, we obtain the...
SIAMCO
2010
13 years 26 days ago
2010
In arbitrary dimension, we consider the semi-discrete elliptic operator -2 t + AM , where AM is a finite difference approximation of the operator - x((x) x). For this operator we d...