A FAST BUTTERFLY-COMPRESSED HADAMARD-BABICH INTEGRATOR FOR HIGH-FREQUENCY HELMHOLTZ EQUATIONS IN INHOMOGENEOUS MEDIA WITH ARBITRARY SOURCES

Liu, Y; Song, J; Burridge, R; Qian, JL

Liu, Y (通讯作者),Lawrence Berkeley Natl Lab, Appl Math & Computat Res Div, Berkeley, CA 94720 USA.

MULTISCALE MODELING & SIMULATION, 2023; 21 (1): 269

Abstract

We present a butterfly-compressed representation of the Hadamard-Babich (HB) ansatz for the Green's function of the high-frequency Helmholtz equation ......

Full Text Link