Arnold Neumaier

mat.univie.ac.at/~neum
Vienna, Austria
Member for 9 years, 7 months

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334/400 score

60/80 answers

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2 posts edited

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246 votes cast

Answers (186)

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)
17	What is the fastest way to calculate the largest eigenvalue of a general matrix?

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Reputation (10,988)

+10	On Vanilla Preconditioners for solving dense $Ax=b$ iteratively
+10	Eigenspace basis continuously depending on parameters
+30	What is the fastest way to calculate the largest eigenvalue of a general matrix?
+15	Nonlinear least square optimization

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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)

334 linear-algebra × 60	79 algorithms × 14
227 optimization × 46	77 linear-solver × 12
151 matrix × 33	59 sparse-matrix × 6
135 eigensystem × 22	46 condition-number × 6
83 iterative-method × 15	42 krylov-method × 4

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Bookmarks (23)

Votes Activity Newest Views Added

40	Scientific standards for numerical errors
35	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	41,535 rep	111 silver badges205 bronze badges
	Computational Science	10,988 rep	16 silver badges42 bronze badges
	MathOverflow	3,411 rep	11 silver badges28 bronze badges
	Mathematics	1,053 rep	7 silver badges17 bronze badges
	Chemistry	415 rep	3 silver badges7 bronze badges

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Custodian × 3	Self-Learner
Curious	Enlightened × 5
Yearling × 9	matrix
Announcer	Scholar
Nice Answer × 18	eigensystem

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Votes cast (246)

all time			by type
236	up		99	question
10	down		147	answer

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