Skip to main content
Victor Liu's user avatar
Victor Liu's user avatar
Victor Liu's user avatar
Victor Liu
  • Member for 12 years, 6 months
  • Last seen more than 2 years ago
18 votes
4 answers
4k views

Why can't Householder reflections diagonalize a matrix?

13 votes
1 answer
333 views

Specialized methods for complex symmetric tridiagonal generalized eigenvalue problems

11 votes
3 answers
3k views

Volume of 3D convex hull of small point sets all on the hull

10 votes
1 answer
437 views

Energy conservation in the solution of the Helmholtz equation

9 votes
1 answer
343 views

Nested dissection on regular grid

8 votes
3 answers
702 views

Evaluating sine and cosine of an integer multiple of an angle

8 votes
2 answers
147 views

Computing ratio of trigonometric functions

8 votes
3 answers
920 views

Solving shifted linear systems with LU factorization

8 votes
2 answers
402 views

Periodic Green's functions in integral equation methods in different frequency regimes

6 votes
2 answers
3k views

Computing the pseudoinverse of a 3x3 matrix

6 votes
1 answer
324 views

Dense generalized hermitian indefinite eigenvalue problem

6 votes
3 answers
557 views

Computing an orthogonal matrix subject to linear constraints

6 votes
0 answers
143 views

How does an unpivoted QR fail to reveal rank?

5 votes
2 answers
168 views

What is the algorithm for computing block reflectors in xDLARFB

5 votes
1 answer
184 views

Computing eigendecomposition of a Hermitian matrix that is almost unitary

4 votes
1 answer
420 views

Sparse LU for block-sparse matrices

3 votes
2 answers
172 views

Computing sparse matrix products into a dense result

3 votes
1 answer
127 views

Efficient computation of tangent of fraction of angle

1 vote
0 answers
172 views

Enforcing continuity conditions in pseudospectral domain decomposition methods for time dependent PDEs