Mar 31, 2021 · We examine the use of a two-level deflation preconditioner combined with GMRES to locally solve the subdomain systems arising from applying domain ...

In this work we introduce the key ideas and begin an initial exploration by considering a simple 2D model problem. 2 Model problem, discretisation and ...

Mar 16, 2023 · In recent years, domain decomposition based preconditioners have become popular tools to solve the Helmholtz equation.

Abstract. In recent years, domain decomposition based preconditioners have become popular tools to solve the Helmholtz equation.

PDF | We examine the use of a two-level deflation preconditioner combined with GMRES to locally solve the subdomain systems arising from applying domain.

Mar 31, 2021 · We examine the use of a two-level deflation preconditioner combined with GMRES to locally solve the subdomain systems arising from applying ...

Inexact Subdomain Solves Using Deflated GMRES for Helmholtz Problems · Numerical Analysis · Delft Institute of Applied Mathematics.

Notorious for causing a variety of convergence issues, the Helmholtz equation remains a challenging PDE to solve numerically. Even for simple model problems, ...

Inexact subdomain solves using deflated GMRES for Helmholtz problems. N Bootland, V Dwarka, P Jolivet, V Dolean, C Vuik. Domain Decomposition Methods in ...

Jun 18, 2024 · Inexact subdomain solves using deflated GMRES for Helmholtz problems ... problem to a matrix equation solved with, for instance, global GMRES.