73 citations · 398 across the 44 of their papers we have counts for
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math.NA2017
Fast Poisson solvers for spectral methods
Daniel Fortunato, Alex Townsend
Poisson's equation is the canonical elliptic partial differential equation. While there exist fast Poisson solvers for finite difference and finite element methods, fast Poisson so…
math.NA2017★ 1 cited
A nonuniform fast Fourier transform based on low rank approximation
Diego Ruiz-Antolin, Alex Townsend
By viewing the nonuniform discrete Fourier transform (NUDFT) as a perturbed version of a uniform discrete Fourier transform, we propose a fast, stable, and simple algorithm for com…