Oct 6, 2022 · A Fast Butterfly-compressed Hadamard-Babich Integrator for High-Frequency Helmholtz Equations in Inhomogeneous Media with Arbitrary Sources.

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

In [25] , the phase and amplitude functions τ, v 0 , v 1 are first tabulated by solving eikonal and transport equations with judiciously selected point sources.

Feb 25, 2023 · A Fast Butterfly-Compressed Hadamard–Babich Integrator for High-Frequency Helmholtz Equations in Inhomogeneous Media with Arbitrary Sources

A Fast Butterfly-Compressed Hadamard–Babich Integrator for High-Frequency Helmholtz Equations in Inhomogeneous Media with Arbitrary Sources. Y Liu, J Song, R ...

The goal is to develop efficient and accurate Hadamard-Babich expansion based fast Huygens sweeping methods and multiscale Gaussian wavepacket transform based ...

Oct 6, 2022 · Babich integrator for solving high-frequency Helmholtz equations in smooth, inhomo- geneous media with arbitrary sources. The scheme low ...

7 days ago · ... fast butterfly-compressed Hadamard-Babich integrator for high-frequency. Helmholtz equations in inhomogeneous media with arbitrary sources.

Yang Liu, Jian Song, Robert Burridge, Jianliang Qian, "A Fast Butterfly-compressed Hadamard-Babich Integrator for High-Frequency Helmholtz Equations in ...

A Fast Butterfly-compressed Hadamard-Babich Integrator for High-Frequency Helmholtz Equations in Inhomogeneous Media with Arbitrary Sources. Preprint. Full ...