Preconditioners for Krylov subspace methods: An overview

JW Pearson, J Pestana - GAMM‐Mitteilungen, 2020 - Wiley Online Library
When simulating a mechanism from science or engineering, or an industrial process, one is
frequently required to construct a mathematical model, and then resolve this model …

Learning physics-based models from data: perspectives from inverse problems and model reduction

O Ghattas, K Willcox - Acta Numerica, 2021 - cambridge.org
This article addresses the inference of physics models from data, from the perspectives of
inverse problems and model reduction. These fields develop formulations that integrate data …

Equivalent operator preconditioning for elliptic problems

O Axelsson, J Karátson - Numerical Algorithms, 2009 - Springer
The numerical solution of linear elliptic partial differential equations most often involves a
finite element or finite difference discretization. To preserve sparsity, the arising system is …

Matrix-equation-based strategies for convection–diffusion equations

D Palitta, V Simoncini - BIT Numerical Mathematics, 2016 - Springer
We are interested in the numerical solution of nonsymmetric linear systems arising from the
discretization of convection–diffusion partial differential equations with separable …

[图书][B] A Journey through the History of Numerical Linear Algebra

C Brezinski, G Meurant, M Redivo-Zaglia - 2022 - SIAM
A Journey through the History of Numerical Linear Algebra: Back Matter Page 1 Bibliography
[1] A. Abdelfattah, H. Anzt, A. Bouteiller, A. Danalis, JJ Dongarra, M. Gates, A. Haidar, J. Kurzak …

Analysis of the Barzilai-Borwein step-sizes for problems in Hilbert spaces

B Azmi, K Kunisch - Journal of Optimization Theory and Applications, 2020 - Springer
Abstract The Barzilai and Borwein gradient method has received a significant amount of
attention in different fields of optimization. This is due to its simplicity, computational …

Robust superlinear Krylov convergence for complex noncoercive compact-equivalent operator preconditioners

O Axelsson, J Karátson, F Magoulès - SIAM Journal on Numerical Analysis, 2023 - SIAM
Preconditioning for Krylov methods often relies on operator theory when mesh independent
estimates are looked for. The goal of this paper is to contribute to the long development of …

[HTML][HTML] Superior properties of the PRESB preconditioner for operators on two-by-two block form with square blocks

O Axelsson, J Karátson - Numerische Mathematik, 2020 - Springer
Matrices or operators in two-by-two block form with square blocks arise in numerous
important applications, such as in optimal control problems for PDEs. The problems are …

Superlinear convergence of Krylov subspace methods for self-adjoint problems in Hilbert space

R Herzog, E Sachs - SIAM Journal on Numerical Analysis, 2015 - SIAM
The conjugate gradient and minimum residual methods for self-adjoint problems in Hilbert
space are considered. Linear and superlinear convergence results with respect to both Q …

[图书][B] Data-scalable Hessian preconditioning for distributed parameter PDE-constrained inverse problems

NV Alger - 2019 - search.proquest.com
Hessian preconditioners are the key to efficient numerical solution of large-scale distributed
parameter PDE-constrained inverse problems with highly informative data. Such inverse …