Agglomeration-based algebraic multigrid for linear systems coming from edge-element discretizations

François Musy (1) , Laurent Nicolas (2) , Ronan Perrussel (2)

1 ICJ - Institut Camille Jordan
2 AMPERE - Ampère

An algebraic multigrid algorithm based on element agglomeration is proposed for linear systems coming from edgeelement discretizations. The edge prolongation operator satisfies commutativity and energy-minimization properties. Robustness is illustrated on 2D numerical examples

Domaines: Energie électrique

François Musy, Laurent Nicolas, Ronan Perrussel. Agglomeration-based algebraic multigrid for linear systems coming from edge-element discretizations. Compumag 2009, Nov 2009, Florianópolis, Brazil. pp.685. ⟨hal-00412339⟩