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A Matrix-Free Preconditioner for Sparse Symmetric Positive Definite Systems and Least-Squares Problems.
Stefania Bellavia
Jacek Gondzio
Benedetta Morini
Published in:
SIAM J. Sci. Comput. (2013)
Keyphrases
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least squares
symmetric positive definite
linear systems
positive definite
maximum likelihood
random variables
covariance matrix
singular value decomposition
distribution function