An improved two-grid preconditioner for the solution of three-dimensional Helmholtz problems in heterogeneous media

Henri Calandra, Serge Gratton, Xavier Pinel, Xavier Vasseur. An improved two-grid preconditioner for the solution of three-dimensional Helmholtz problems in heterogeneous media. Numerical Lin. Alg. with Applic., 20(4):663-688, 2013. [doi]

Abstract

Abstract is missing.