A sharp relative-error bound for the Helmholtz h-FEM at high frequency.
David LafontaineEuan A. SpenceJared WunschPublished in: Numerische Mathematik (2022)
Keyphrases
- high frequency
- error bounds
- low frequency
- theoretical analysis
- visual quality
- high resolution
- worst case
- wavelet transform
- subband
- finite element
- high frequencies
- discrete wavelet transform
- low pass
- high frequency components
- wavelet coefficients
- wavelet decomposition
- finite sample
- wavelet domain
- filter bank
- high pass
- multi resolution analysis
- high quality