2 papers
math.NA2026
A time-frequency method for acoustic scattering with trapping
Heather Wilber, Wietse Vaes, Abinand Gopal +1
A Fourier transform method is introduced for a class of hybrid time-frequency methods that solve the acoustic scattering problem in regimes where the solution exhibits both highly…
math.NA2026
Low-Rank Approximation by Randomly Pivoted LU
Marc Aurèle Gilles, Heather Wilber
The low-rank approximation properties of Randomly Pivoted LU (RPLU), a variant of Gaussian elimination where pivots are sampled proportional to the squared entries of the Schur com…