456 citations · 461 across the 7 of their papers we have counts for
Showing 2020Show all
2 papers · 1 filter
math.NA2020
Multilevel spectral coarsening for graph Laplacian problems with application to reservoir simulation
Andrew T. Barker, Stephan V. Gelever, Chak S. Lee +2
We extend previously developed two-level coarsening procedures for graph Laplacian problems written in a mixed saddle point form to the fully recursive multilevel case. The resulti…
math.NA2020
Algebraic multigrid preconditioning of the Hessian in PDE-constrained optimization
Andrew T. Barker, Andrei Draganescu
We construct an algebraic multigrid (AMG) based preconditioner for the reduced Hessian of a linear-quadratic optimization problem constrained by an elliptic partial differential eq…