Found 30 Documents (Results 1–30)
Preconditioning the Helmholtz equation with the shifted Laplacian and Faber polynomials. (English) Zbl 1475.65016
Preconditioned global Krylov subspace methods for solving saddle point problems with multiple right-hand sides. (English) Zbl 1431.65028
Augmented GMRES-type versus CGNE methods for the solution of linear ill-posed problems. (English) Zbl 1437.65049
MSC:
65J20
Any finite convergence curve is possible in the initial iterations of restarted FOM. (English) Zbl 1338.65086
Edge-based Schwarz methods for the Crouzeix-Raviart finite volume element discretization of elliptic problems. (English) Zbl 1327.65066
Fast solution of boundary integral equations with the generalized Neumann kernel. (English) Zbl 1330.65185
A deflated block flexible GMRES-DR method for linear systems with multiple right-hand sides. (English) Zbl 1312.65048
MSC:
65F10
Multigrid preconditioning of the non-regularized augmented Bingham fluid problem. (English) Zbl 1367.76033
Parallelism and robustness in GMRES with a Newton basis and deflated restarting. (English) Zbl 1288.65042
Spectral deflation in Krylov solvers: a theory of coordinate space based methods. (English) Zbl 1285.65021
On a non-stagnation condition for GMRES and application to saddle point matrices. (English) Zbl 1206.65136
\(P\)-regular splitting iterative methods for non-Hermitian positive definite linear systems. (English) Zbl 1191.65031
Reviewer: Constantin Popa (Constanţa)
Acceleration of implicit schemes for large systems of nonlinear ODEs. (English) Zbl 1189.65135
Reviewer: Seenith Sivasundaram (Daytona Beach)
Algebraic properties of the block GMRES and block Arnoldi methods. (English) Zbl 1188.65031
MSC:
65F10
On a multilevel Krylov method for the Helmholtz equation preconditioned by shifted Laplacian. (English) Zbl 1190.65050
Analysis of some Krylov subspace methods for normal matrices via approximation theory and convex optimization. (English) Zbl 1171.65019
Simpler block GMRES for nonsymmetric systems with multiple right-hand sides. (English) Zbl 1188.65034
MSC:
65F10
On worst-case GMRES, ideal GMRES, and the polynomial numerical hull of a Jordan block. (English) Zbl 1171.65373
Some theoretical results derived from polynomial numerical hulls of Jordan blocks. (English) Zbl 1068.15039
A parallel GMRES version for general sparse matrices. (English) Zbl 0860.65021
Reviewer: H.Hollatz (Magdeburg)
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