1 citations · 1 across the 3 of their papers we have counts for
4 papers
nifty-ls: Fast and Accurate Lomb-Scargle Periodograms Using a Non-Uniform FFT
Lehman H. Garrison, Dan Foreman-Mackey, Yu-hsuan Shih +1
We present nifty-ls, a software package for fast and accurate evaluation of the Lomb-Scargle periodogram. nifty-ls leverages the fact that Lomb-Scargle can be computed using a non-…
Robust multigrid techniques for augmented Lagrangian preconditioning of incompressible Stokes equations with extreme viscosity variations
Yu-hsuan Shih, Georg Stadler, Florian Wechsung
We present augmented Lagrangian Schur complement preconditioners and robust multigrid methods for incompressible Stokes problems with extreme viscosity variations. Such Stokes syst…
cuFINUFFT: a load-balanced GPU library for general-purpose nonuniform FFTs
Yu-hsuan Shih, Garrett Wright, Joakim Andén +2
Nonuniform fast Fourier transforms dominate the computational cost in many applications including image reconstruction and signal processing. We thus present a general-purpose GPU-…
Advanced Newton Methods for Geodynamical Models of Stokes Flow with Viscoplastic Rheologies
Johann Rudi, Yu-hsuan Shih, Georg Stadler
Strain localization and resulting plasticity and failure play an important role in the evolution of the lithosphere. These phenomena are commonly modeled by Stokes flows with visco…