Hadamard integrators for wave equations in time and frequency domain: Eulerian formulations via butterfly algorithms
DOI10.1007/s10915-024-02631-0zbMATH Open1547.65164MaRDI QIDQ6604511
Robert Burridge, Yuxiao Wei, Jianliang Qian, Shingyu Leung, Jin Cheng
Publication date: 12 September 2024
Published in: Journal of Scientific Computing (Search for Journal in Brave)
Helmholtz equationcausticsHadamard's ansatzhigh-frequency wavebutterfly algorithmtime-dependent wave equation
Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Numerical methods for discrete and fast Fourier transforms (65T50) Complexity and performance of numerical algorithms (65Y20) Green's functions for elliptic equations (35J08) Fundamental solutions, Green's function methods, etc. for initial value and initial-boundary value problems involving PDEs (65M80)
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