A proxy-surface-based fast direct boundary element solver for 2D elastic wave scattering by cavities achieves O(N) complexity in the low-frequency range, with fast multiple right-hand-side solves.
Fast direct solver for transmission boundary value problems for Helmholtz’ eqation in 2D,
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Linearly scalable fast direct solver based on proxy surface method for two-dimensional elastic wave scattering by cavity
A proxy-surface-based fast direct boundary element solver for 2D elastic wave scattering by cavities achieves O(N) complexity in the low-frequency range, with fast multiple right-hand-side solves.