Optimal triangular mesh generation by coordinate transformation
SIAM Journal on Scientific and Statistical Computing
An adaptive grid with directional control
Journal of Computational Physics
Anisotropic mesh transformations and optimal error control
Proceedings of the third ARO workshop on Adaptive methods for partial differential equations
A Local Problem Error Estimator for Anisotropic Tetrahedral Finite Element Meshes
SIAM Journal on Numerical Analysis
Applied Numerical Mathematics
Adaptive finite element methods for nonlinear inverse problems
Proceedings of the 2009 ACM symposium on Applied Computing
Geodesic Methods in Computer Vision and Graphics
Foundations and Trends® in Computer Graphics and Vision
Journal of Computational and Applied Mathematics
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In this paper, we propose an anisotropic adaptive refinement algorithm based on the finite element methods for the numerical solution of partial differential equations. In 2-D, for a given triangular grid and finite element approximating space V, we obtain information on location and direction of refinement by estimating the reduction of the error if a single degree of freedom is added to V. For our model problem the algorithm fits highly stretched triangles along an interior layer, reducing the number of degrees of freedom that a standard h-type isotropic refinement algorithm would use.