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- W2769328682 abstract "A new class of symmetric factored approximate inverses is proposed and used in conjunction with the Preconditioned Conjugate Gradient method for solving sparse symmetric linear systems. Additionally, a new hybrid two-level solver is proposed utilizing a block independent set reordering, in order to create the two level hierarchy. The Schur complement is formed explicitly by inverting the blocks created by reordering. Then, the preconditioned conjugate gradient method is used in conjunction with the symmetric factored approximate inverse to solve the reduced order linear system. Furthermore, numerical results on the performance and convergence behavior for solving various model problems are presented." @default.
- W2769328682 created "2017-12-04" @default.
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- W2769328682 date "2018-09-01" @default.
- W2769328682 modified "2023-09-27" @default.
- W2769328682 title "A Class of Symmetric Factored Approximate Inverses and Hybrid Two-Level Solver" @default.
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- W2769328682 doi "https://doi.org/10.1142/s0219876218500500" @default.
- W2769328682 hasPublicationYear "2018" @default.
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