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math.NA2016★ 5 cited
A Comparison of Preconditioned Krylov Subspace Methods for Large-Scale Nonsymmetric Linear Systems
Aditi Ghai, Cao Lu, Xiangmin Jiao
Preconditioned Krylov subspace (KSP) methods are widely used for solving large-scale sparse linear systems arising from numerical solutions of partial differential equations (PDEs)…
math.NA2015
OPINS: An Orthogonally Projected Implicit Null-space Method for Singular and Nonsingular Saddle-point Systems
Cao Lu, Tristan Delaney, Xiangmin Jiao
Saddle-point systems appear in many scientific and engineering applications. The systems can be sparse, symmetric or nonsymmetric, and possibly singular. In many of these applicati…