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rchilton1980
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98 Answers

Votes Activity Newest
19
Central differencing scheme for second derivative leads to ill-conditioning
Dec 14 '17 at 14:47
13
Why does sparse linear algebra have a low arithmetic intensity?
May 21 '18 at 12:06
11
Eigenvectors with the Power Iteration
Oct 2 '12 at 14:11
9
Cheap recalculation of eigenvalues and eigenvectors for a low-rank update of the matrix
Sep 3 '20 at 17:20
9
Are there any drawbacks to using the Method of Manufactured Solutions for convergence testing?
May 10 '18 at 15:49
9
Repeated nearest neighbor calculation for millions of data points too slow
Mar 13 '13 at 13:54
8
Generate random smooth 2D closed curves
Aug 12 '20 at 13:40
8
Is half precision supported by modern architecture?
May 20 '20 at 19:34
8
Implementation of a $O(n \log(n))$ method to compute eigenvalues of real symmetric tridiagonal matrices
May 4 '20 at 15:45
8
Finite difference for 1D wave equation: why the spike initial data results in a noisy output?
Oct 4 '18 at 1:06
7
Efficient projection of a vector onto matrix kernel
Jul 8 '20 at 15:27
7
What is the reason that LAPACK uses $\tau$ in QR decomposition (instead of normalizing the reflection vector)?
Feb 4 '19 at 15:08
7
3D contour mesh computation
Jul 10 '18 at 12:43
6
Why is FEM theory only ever written down for simplices?
Apr 22 at 14:49
6
Does a symmetric positive definite matrix also have $\mathbf{A} = \mathbf{L}^T\mathbf{L}$ (where $\mathbf{L}$ is a lower triangular matrix)?
Nov 5 '19 at 14:50
6
Accurate way of getting the square root inverse of a positive definite symmetric matrix
Jun 3 '19 at 16:06
6
(FEM) Nodes reordering for sparse matrix storing techniques
Apr 30 '19 at 13:12
5
How to create a good preconditioner for a system of linear equations that is created with FEM applied on the time harming Maxwell eqution?
May 20 at 15:17
5
Minimum number of elements (mesh size) for electromagnetic simulation
Mar 6 '20 at 16:38
5
Block-matrix: optimal fill-in reduction for LU factorization
Dec 11 '19 at 2:19
5
Correct use of scipy's sparse.linalg.spilu
Jul 20 '17 at 14:05
5
Why should one use a tree structure to represent discrete function spaces?
Oct 23 '19 at 16:17
5
Computing the Inverse of a matrix, using the Cholesky decomposition
Jan 14 '19 at 20:32
5
inertia count sparse matrix with dense low-rank perturbation
Aug 21 '18 at 18:00
5
Supernodal vs multifrontal factorizations
Feb 6 '18 at 20:44
5
Fast way to compute the diagonal elements of the inverse of covariance matrix
Jun 27 '17 at 15:53
5
Do black-box preconditioners for matrix-free methods exist?
May 15 '14 at 13:28
4
Simplest solver for linear equation systems
Apr 8 at 13:46
4
More stable method of back substitution?
May 21 '20 at 19:00
4
Partially Banded Matrix
Nov 7 '19 at 14:23
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