Results 11 to 20 of about 9,757 (303)
A Preconditioner for the Ohta--Kawasaki Equation [PDF]
SIAM Journal on Matrix Analysis and Applications, 2017 We propose a new preconditioner for the Ohta--Kawasaki equation, a nonlocal Cahn--Hilliard equation that describes the evolution of diblock copolymer melts. We devise a computable approximation to the inverse of the Schur complement of the coupled second-order formulation via a matching strategy.
Farrell, Patrick E., Pearson, John
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A generalization of T. Chan’s preconditioner [PDF]
Linear Algebra and its Applications, 2005 The authors propose a new preconditioner for solving linear systems by the preconditioned conjugate gradient (PCG) method. The operation cost and convergence of the PCG method are discussed. Numerical examples are also provided.
Cai, Ming-Chao +2 more
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haldaas/Nystrom--Schur-Preconditioner: version reproducing paper numerical experiments
, 2021 A two-level Nyström--Schur preconditioner for SPD ...
Hussam Al Daas
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The ILUCP Preconditioner [PDF]
PAMM, 2004 AbstractWe introduce a new incomplete LU‐type preconditioner which combines the advantages of Crout's formulation of Gaussian elimination with pivoting. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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Analysis of Two-Level Complex Shifted Laplace Preconditioner and Deflation-Based Preconditioner for Helmholtz Equation [PDF]
, 2022 A Long time deflation preconditioner is used to speed up the convergence of the Krylov subspace method. The discretization of Helmholtz equation with Dirichlet boundary condition by finite difference method obtained any linear system.
Shiekh, Hanan +2 more
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The generalized superoptimal preconditioner [PDF]
, 2010 For any given n-by-n matrix A, a specific circulant preconditioner tF(A) introduced by Tyrtyshnikov [E. Tyrtyshnikov, Optimal and super-optimal circulant preconditioners, SIAM J. Matrix Anal. Appl.
Chen, Jian-Long, Jin, Xiao-Qing
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ILU preconditioning based on the FAPINV algorithm [PDF]
Opuscula Mathematica, 2015 A technique for computing an ILU preconditioner based on the factored approximate inverse (FAPINV) algorithm is presented. We show that this algorithm is well-defined for H-matrices.
Davod Khojasteh Salkuyeh +2 more
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Fractal and Fractional, 2023 Fractional derivatives and regime-switching models are widely used in various fields of finance because they can describe the nonlocal properties of the solutions and the changes in the market status, respectively.
Xu Chen +3 more
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On the Construction of Deflation-Based Preconditioners [PDF]
SIAM Journal on Scientific Computing, 2001 New effective condition number bounds for deflated systems, both with and without preconditioning are given. Subdomain deflation is very easy to implement, and the method can be very efficiently implemented on distributed memory parallel computers. Numerical experiments for a steady-state are included.
J.E. Frank (Jason), C. Vuik
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A Preconditioner for Improved Fermion Actions [PDF]
Nuclear Physics B - Proceedings Supplements, 1999 SSOR preconditioning of fermion matrix inversions which is parallelized using a locally-lexicographic lattice sub-division, has been shown to be very efficient for standard Wilson fermions. We demonstrate here the power of this method for the Sheikholeslami-Wohlert improved fermion action and for a renormalization group improved action incorporating ...
Wolfgang Bietenholz +5 more
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