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Arnold Neumaier

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10,913

10.9k
10.5k
10.1k

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331/400 score

60/80 answers

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41

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2 posts edited

9 helpful flags

245 votes cast

Answers (185)

Votes Activity Newest

22	Solving $(G^TA^{-1}G)x = b$ without inverting $A$
19	Scientific standards for numerical errors
19	Does a tiny determinant imply ill-conditioning of a matrix?
17	MATLAB matrix multiplication (the best computational approach)
16	BFGS vs. Conjugate Gradient Method

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Reputation (10,913)

+70	solving linear system whose symmetrized matrix is positive definite
+10	weighted SVD problem?
+10	Sensitivity of BFGS to initial Hessian approximations
+10	Solving $(G^TA^{-1}G)x = b$ without inverting $A$

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Questions (5)

Votes Activity Newest

9	large dense low rank assignment problem
7	solving linear system whose symmetrized matrix is positive definite
2	public solvers for the time-dependent Schrödinger equation?
2	Transforming an arbitrary linear program into one with an interior point
1	implied equalities and relative interior

Tags (87)

331 linear-algebra × 60	77 linear-solver × 12
226 optimization × 45	76 algorithms × 14
151 matrix × 33	56 sparse-matrix × 6
131 eigensystem × 22	46 condition-number × 6
82 iterative-method × 15	42 krylov-method × 4

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Bookmarks (23)

Votes Activity Newest Views Added

40	Scientific standards for numerical errors
34	How to choose a method for solving linear equations
30	Where do the laws of quantum mechanics break down in simulations?
26	Visualizing very large link graphs
15	What is the current state of polynomial preconditioners?

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Accounts (12)

	Physics	40,918 rep	111 silver badges204 bronze badges
	Computational Science	10,913 rep	16 silver badges41 bronze badges
	MathOverflow	3,227 rep	10 silver badges28 bronze badges
	Mathematics	1,023 rep	7 silver badges17 bronze badges
	Chemistry	415 rep	3 silver badges7 bronze badges

Badges (24)

Recent Class Name

Curious	Enlightened × 5
Yearling × 9	matrix
Announcer	Scholar
Nice Answer × 18	eigensystem
Self-Learner	Explainer

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Votes cast (245)

all time			by type
235	up		98	question
10	down		147	answer

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