153 citations · 333 across the 25 of their papers we have counts for
3 papers · 1 filter
A scalable preconditioner for a DPG method
Andrew T. Barker, Veselin Dobrev, Jay Gopalakrishnan +1
We show how a scalable preconditioner for the primal discontinuous Petrov-Galerkin (DPG) method can be developed using existing algebraic multigrid (AMG) preconditioning techniques…
A spacetime DPG method for the Schrodinger equation
Leszek Demkowicz, Jay Gopalakrishnan, Sriram Nagaraj +1
A spacetime Discontinuous Petrov Galerkin (DPG) method for the linear time-dependent Schrodinger equation is proposed. The spacetime approach is particularly attractive for capturi…
Mapped tent pitching schemes for hyperbolic systems
J. Gopalakrishnan, J. Schöberl, C. Wintersteiger
A spacetime domain can be progressively meshed by tent shaped objects. Numerical methods for solving hyperbolic systems using such tent meshes to advance in time have been proposed…