Weighted Finite Fourier Transform Operator: Uniform Approximations of the Eigenfunctions, Eigenvalues Decay and Behaviour.
Abderrazek KarouiAhmed SouabniPublished in: J. Sci. Comput. (2017)
Keyphrases
- fourier transform
- fourier coefficients
- laplace beltrami
- frequency domain
- signal processing
- fourier domain
- fourier analysis
- radon transform
- covariance matrix
- fast fourier transform
- discrete fourier transform
- log polar
- frequency spectrum
- weighted graph
- point cloud
- principal component analysis
- heat kernel
- multiresolution
- shape analysis
- neural network
- wiener filter
- spectral analysis
- spatial domain
- basis functions
- phase difference
- correlation function
- power spectral density