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A generalized relaxed positive-definite and skew-Hermitian splitting preconditioner for non-Hermitian saddle point problems.
Hong-Tao Fan
Xin-Yun Zhu
Published in:
Appl. Math. Comput. (2015)
Keyphrases
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saddle point
positive definite
image processing
feature extraction
covariance matrix
variational inequalities