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math.NA2021
Block preconditioning methods for asymptotic preserving scheme arising in anisotropic elliptic problems
Lingxiao Li, Chang Yang
Efficient and robust iterative solvers for strong anisotropic elliptic equations are very challenging. In this paper a block preconditioning method is introduced to solve the linea…
math.NA2021★ 10 cited
Asymptotic preserving scheme for anisotropic elliptic equations with deep neural network
Long Li, Chang Yang
In this paper, a new asymptotic preserving (AP) scheme is proposed for the anisotropic elliptic equations. Different from previous AP schemes, the actual one is based on first-orde…