63 citations · 243 across the 31 of their papers we have counts for
3 papers · 1 filter
Fast hybrid numerical-asymptotic boundary element methods for high frequency screen and aperture problems based on least-squares collocation
Andrew Gibbs, David Hewett, Daan Huybrechs +1
We present a hybrid numerical-asymptotic (HNA) boundary element method (BEM) for high frequency scattering by two-dimensional screens and apertures, whose computational cost to ach…
Boundary element methods for acoustic scattering by fractal screens
Simon N. Chandler-Wilde, David P. Hewett, Andrea Moiola +1
We study boundary element methods for time-harmonic scattering in () by a fractal planar screen, assumed to be a non-empty bounded subset of the hyperplan…
Density results for Sobolev, Besov and Triebel--Lizorkin spaces on rough sets
António Caetano, David P. Hewett, Andrea Moiola
We investigate two density questions for Sobolev, Besov and Triebel--Lizorkin spaces on rough sets. Our main results, stated in the simplest Sobolev space setting, are that: (i) fo…