Domain decomposition preconditioning for high-frequency Helmholtz problems with absorption.

Ivan G. Graham Euan A. Spence Eero Vainikko

Published in: Math. Comput. (2017)

Keyphrases

high frequency
low frequency
high resolution
wavelet transform
subband
visual quality
high frequencies
low pass
wavelet decomposition
frequency band
machine learning
computer vision
multiscale
edge preserving
high frequency components