[图书][B] Iterative methods and preconditioners for systems of linear equations

G Ciaramella, MJ Gander - 2022 - SIAM
This book gives an introduction to iterative methods and preconditioning for solving
discretized elliptic partial differential equations (PDEs) and optimal control problems …

On the convergence of overlapping and non-overlapping Schwarz methods for the Cahn–Hilliard equation

G Garai, BC Mandal - Journal of Computational Science, 2024 - Elsevier
In this study, we develop and investigate the Schwarz method with or without overlap for the
Cahn–Hilliard (CH) problem. The CH equation has a wide range of applications, hence it is …

Convergence of linear and nonlinear Neumann–Neumann method for the Cahn–Hilliard equation

G Garai - Japan Journal of Industrial and Applied Mathematics, 2024 - Springer
In this paper, we propose and analyze a non-overlapping substructuring type algorithm for
the Cahn–Hilliard equation. Being a nonlinear equation, it is of great importance to develop …

Substructured two-grid and multi-grid domain decomposition methods

G Ciaramella, T Vanzan - Numerical Algorithms, 2022 - Springer
Two-level Schwarz domain decomposition methods are very powerful techniques for the
efficient numerical solution of partial differential equations (PDEs). A two-level domain …

Convergence of substructuring methods for the Cahn–Hilliard equation

G Garai, BC Mandal - … in Nonlinear Science and Numerical Simulation, 2023 - Elsevier
In this paper, we propose and study non-overlapping substructuring type algorithms for the
Cahn–Hilliard (CH) equation, which was originally proposed to describe the phase …

On the scalability of the Schwarz method

G Ciaramella, M Hassan, B Stamm - The SMAI journal of …, 2020 - numdam.org
In this article, we analyse the convergence behaviour and scalability properties of the one-
level Parallel Schwarz method (PSM) for domain decomposition problems in which the …

Closed form optimized transmission conditions for complex diffusion with many subdomains

V Dolean, MJ Gander, A Kyriakis - SIAM Journal on Scientific Computing, 2023 - SIAM
Optimized transmission conditions in domain decomposition methods have been the focus
of intensive research efforts over the past decade. Traditionally, transmission conditions are …

Cross-points in the Dirichlet-Neumann method I: well-posedness and convergence issues

B Chaudet-Dumas, MJ Gander - Numerical Algorithms, 2023 - Springer
Cross-points in domain decomposition, ie, points where more than two subdomains meet,
have received substantial attention over the past years, since domain decomposition …

A local coarse space correction leading to a well-posed continuous Neumann-Neumann method in the presence of cross points

F Chaouqui, MJ Gander… - … Decomposition Methods in …, 2020 - Springer
Abstract Neumann-Neumann methods (NNMs) are among the best parallel solvers for
discretized partial differential equations, see [12] and references therein. Their common …

Analysis of parallel Schwarz algorithms for time-harmonic problems using block Toeplitz matrices

N Bootland, V Dolean, A Kyriakis, J Pestana - arXiv preprint arXiv …, 2020 - arxiv.org
In this work we study the convergence properties of the one-level parallel Schwarz method
with Robin transmission conditions applied to the one-dimensional and two-dimensional …