Jed Brown

14,607 reputation

12159

bio	website	59A2.org/research
	location	Chicago, IL
	age
visits	member for	1 year, 5 months
	seen	1 hour ago
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I am a postdoc in the Mathematics and Computer Science Division at Argonne National Laboratory. Among other things, I am a developer of the PETSc solvers package. See my research page for details.

	14,607 reputation	bio	website	59A2.org/research	visits	member for	1 year, 5 months
12159 badges		location	Chicago, IL		seen	1 hour ago

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209 Answers

votes activity newest

29	What core skills should every computational scientist have?
26	Why is Newton's method not converging?
21	What are criteria to choose between finite-differences and finite-elements
20	Alternatives to Journal of Computational Physics
19	Are there any famous problems/algorithms in scientific computing that cannot be sped up by parallelisation

14,607 Reputation

+20	Jacobi preconditioner not reducing condition number?
+20	SPD matrices with right hand sides
+30	How to solve the stiff equation in this Restricted Three Body Problem numerically?
+10	What is the advantage of multigrid over domain decomposition preconditioners, and vice versa?

13 Questions

votes activity newest

17	Why is local conservation important when solving PDEs?
15	Why is Newton's method not converging?
13	How to determine if a numerical solution to a PDE is converging to a continuum solution?
12	Which methods can ensure that physical quantities remain positive throughout a PDE simulation?
11	How can I estimate the condition number of a large sparse matrix using PETSc?

129 Tags

222 pde × 43	94 parallel-computing × 16
215 linear-algebra × 46	85 iterative-method × 16
177 petsc × 36	79 fluid-dynamics × 16
132 numerics × 21	77 multigrid × 16
122 finite-element × 23	70 finite-difference × 17