Nico Schlömer's user avatar
Nico Schlömer's user avatar
Nico Schlömer's user avatar
Nico Schlömer
  • Member for 11 years
  • Last seen more than a month ago
16 votes
7 answers
1k views

Scripted Mesh Generation Software

13 votes
2 answers
443 views

Oscillations in singularly perturbed reaction-diffusion problems with finite elements

10 votes
3 answers
536 views

Integrating Lagrange polynomials with many nodes, round-off

8 votes
1 answer
161 views

F(x) = 0 vs. ||F(x)||^2->min

7 votes
2 answers
4k views

FEniCS: separate boundary conditions in normal and tangential direction of mesh boundary

7 votes
0 answers
439 views

fastest way to compute many small dot products

6 votes
2 answers
646 views

Residual norm of PDE discretization: correspondence in the continuous problem?

5 votes
1 answer
291 views

Nonlinear least-squares solvers vs. generic minimization

5 votes
0 answers
197 views

Time-stepping for coupled nonlinear PDEs

5 votes
2 answers
1k views

FEniCS: custom quadrature rule

5 votes
1 answer
131 views

Approximate $\|\Delta f\|^2_{L^2(\Omega)}$ in finite element context

5 votes
1 answer
100 views

approximate function such that the inverse of the approximation is "simple"

4 votes
1 answer
157 views

Geometric integrators besides midpoint/Crank-Nicolson?

4 votes
1 answer
157 views

compute max(||u||) for vector field

4 votes
2 answers
224 views

treating "almost linear" nonlinear least-squares problems

3 votes
1 answer
228 views

boundary oscillations with Robin boundary conditions

3 votes
2 answers
1k views

FEniCS: extracting points from a cell

3 votes
1 answer
111 views

number of tetrahedra in unstructured mesh when edge length is halved

3 votes
1 answer
218 views

Preconditioning a least-squares problem?

2 votes
0 answers
64 views

LSMR: update $\|x\|$ cheaply

2 votes
1 answer
170 views

LOBPCG bad preconditioned performance for largest eigenpairs

2 votes
2 answers
619 views

FEniCS: check if function is globally greater than 0

2 votes
2 answers
681 views

computing Newton-Cotes weights

2 votes
1 answer
183 views

FEM-Laplace with Dirichlet in only a few points: Nonsingular operator?

1 vote
1 answer
152 views

CG without division by 0 in a solution

1 vote
3 answers
205 views

preconditioner for Laplace "without" boundary values