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math.NA2018
Preconditioned Iterative Methods for Diffusion Problems with High-Contrast Inclusions
Yuliya Gorb, Vasiliy Kramarenko, Yuri Kuznetsov
This paper concerns robust numerical treatment of an elliptic PDE with high contrast coefficients, for which classical finite-element discretizations yield ill-conditioned linear s…
math.NA2018★ 2 cited
A Robust Preconditioner for High-Contrast Problems
Yuliya Gorb, Daria Kurzanova, Yuri Kuznetsov
A finite-element discretization of such an equation yields a linear system whose conditioning worsens as the variations in the values of PDE coefficients becomes large. This paper…