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"A phase velocity preserving fourth-order finite difference scheme for the ..."
Tingting Wu, Wenhui Zhang, Taishan Zeng (2024)
- Tingting Wu, Wenhui Zhang, Taishan Zeng:
A phase velocity preserving fourth-order finite difference scheme for the Helmholtz equation with variable wavenumber. Appl. Math. Lett. 154: 109105 (2024)
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