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1 answers
4 votes
203 views
1 bookmarks
How can one prove the duality of Voronoi and Delaunay?
1 answers
3 votes
162 views
1 bookmarks
How to show that a problem is ill-posed
6 answers
18 votes
2k views
6 bookmarks
How to reorder variables to produce a banded matrix of minimum bandwidth?
1 answers
1 votes
324 views
1 bookmarks
Conjugate gradient - ill-conditioning and numerical tolerance
8 answers
166 votes
134k views
161 bookmarks
Recommendations for a usable, fast C++ matrix library?
1 answers
2 votes
165 views
1 bookmarks
Poorly conditioned, easily evaluated sum for unit testing
2 answers
23 votes
5k views
16 bookmarks
A good finite difference for the continuity equation
2 answers
10 votes
940 views
4 bookmarks
How much regularization to add to make SVD stable?
2 answers
5 votes
208 views
1 bookmarks
Building Gaussian-type quadrature schemes with Zernike polynomials
1 answers
3 votes
261 views
4 bookmarks
FEM current toy problem
2 answers
4 votes
210 views
2 bookmarks
Looking for a mathematical proof of stability in floating point arithmetic of CG - any reference?
1 answers
14 votes
965 views
7 bookmarks
Are direct solvers affected by the condition number of a matrix?
2 answers
29 votes
13k views
9 bookmarks
Does a tiny determinant imply ill-conditioning of a matrix?
1 answers
3 votes
580 views
1 bookmarks
p-refinement in adaptive methods
1 answers
6 votes
269 views
5 bookmarks
Why is the continuous Galerkin Finite Element Method a poor choice for the inverse problem for the Navier-Lame equation?
3 answers
27 votes
4k views
23 bookmarks
What is the principle behind the convergence of Krylov subspace methods for solving linear systems of equations?
2 answers
17 votes
3k views
14 bookmarks
Numerically stable way of computing angles between vectors
1 answers
3 votes
144 views
1 bookmarks
Comments needed on the doubts of PDEs in moving boundary problems
5 answers
26 votes
7k views
13 bookmarks
What are the main differences between PETSc and Trilinos?
1 answers
3 votes
209 views
1 bookmarks
How to construct a function in $H^3(\Omega)$, but not in $H^4(\Omega)$?
2 answers
3 votes
263 views
2 bookmarks
Steklov-Poincaré operator for overlapping domain decomposition
2 answers
10 votes
512 views
8 bookmarks
Where can I find a good reference for the stability properties of several methods of solving parabolic PDEs?
2 answers
10 votes
463 views
3 bookmarks
Why do the shape of finite elements matter?
4 answers
4 votes
3k views
2 bookmarks
How to deal with nonlinear term in Navier Stokes equations (finite element code)
1 answers
2 votes
427 views
1 bookmarks
Why do we need orthonormal basis of Krylov subspaces for GMRES?
1 answers
4 votes
287 views
2 bookmarks
Localization of Sub-problems in the Multiscale Finite Element Method
5 answers
10 votes
8k views
2 bookmarks
C++ library for numerical intergration (quadrature)
1 answers
20 votes
3k views
15 bookmarks
BDF vs implicit Runge Kutta time stepping
1 answers
3 votes
483 views
4 bookmarks
Intro to DG Finite Element methods
3 answers
13 votes
10k views
7 bookmarks
Understanding the "rate of convergence" for iterative methods