Network profile

Arnold Neumaier

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10,833

10.8k
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9.9k

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330/400 score

60/80 answers

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15

40

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linear-algebra

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2 posts edited

9 helpful flags

244 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 (10,833)

+10	public solvers for the time-dependent Schrödinger equation?
+10	Solving $(G^TA^{-1}G)x = b$ without inverting $A$
+10	Does a tiny determinant imply ill-conditioning of a matrix?
+10	Is there a generalization of the Sylvester Inertia Law for the symmetric generalized eigenvalue problem?

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Questions (4)

Votes Activity Newest

9	large dense low rank assignment problem
3	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)

330 linear-algebra × 60	77 linear-solver × 11
225 optimization × 45	75 algorithms × 14
150 matrix × 33	56 sparse-matrix × 6
131 eigensystem × 22	46 condition-number × 6
82 iterative-method × 14	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	40,227 rep	108 silver badges200 bronze badges
	Computational Science	10,833 rep	15 silver badges40 bronze badges
	MathOverflow	3,158 rep	9 silver badges27 bronze badges
	Mathematics	1,013 rep	6 silver badges17 bronze badges
	Chemistry	425 rep	3 silver badges7 bronze badges

Badges (23)

Recent Class Name

linear-algebra	Announcer
optimization	Nice Answer × 18
matrix	Self-Learner
eigensystem	Enlightened × 5
Yearling × 8	Scholar

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Votes cast (244)

all time			by type
234	up		98	question
10	down		146	answer

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