Flexible aggregation-based algebraic multigrid methods for contact and flow problems

T Wiesner - 2015 - mediatum.ub.tum.de
In scientific computing, efficient iterative solution strategies for linear systems are extremely
important. This thesis presents a flexible aggregation-based algebraic multigrid framework …

Smoothing factor, order of prolongation and actual multigrid convergence

A Napov, Y Notay - Numerische Mathematik, 2011 - Springer
We consider the Fourier analysis of multigrid methods (of Galerkin type) for symmetric
positive definite and semi-positive definite linear systems arising from the discretization of …

Algebraic two-level convergence theory for singular systems

Y Notay - SIAM Journal on Matrix Analysis and Applications, 2016 - SIAM
We consider the algebraic convergence theory that gives its theoretical foundations to
classical algebraic multigrid methods. All the main results constitutive of the approach are …

3D parallel multigrid methods for real-time fluid simulation

F Wan, Y Yin, S Zhang - 3D Research, 2018 - Springer
The multigrid method is widely used in fluid simulation because of its strong convergence. In
addition to operating accuracy, operational efficiency is also an important factor to consider …

Analysis of parallel multigrid methods in real-time fluid simulation

F Wan, Y Yin, Q Zhang, X Peng - International Journal of Modeling …, 2017 - World Scientific
The multigrid method has been widely used in computational fluid dynamics (CFD)
numerical calculations because of its strong convergence. To achieve real-time simulation of …

Revisiting aggregation-based multigrid for edge elements

A Napov, R Perrussel - Electronic Transactions on Numerical Analysis, 2019 - hal.science
We consider a modification of the Reitzinger-Schöberl algebraic multigrid method for the
iterative solution of the curl-curl boundary value problem discretized with edge elements …

Algebraic analysis of two-level multigrid methods for edge elements

A Napov, R Perrussel - Electronic Transactions on Numerical Analysis, 2019 - hal.science
We present an algebraic analysis of two-level multigrid methods for the solution of linear
systems arising from the discretization of the curl-curl boundary value problem with edge …