A note on preconditioning for indefinite linear systems

A note on preconditioning for indefinite linear systems

Бусад хувилбаруудыг харуулах (1)

Preconditioners are often conceived as approximate inverses. For nonsingular indefinite matrices of saddle-point (or KKT) form, we show how preconditioners incorporating an exact Schur complement lead to preconditioned matrices with exactly two or exactly three distinct eigenvalues. Thus approximati...

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Номзүйн дэлгэрэнгүй
Үндсэн зохиолчид:	Murphy, M, Golub, G, Wathen, A
Формат:	Report
Хэвлэсэн:	SIAM 1999

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