Basic Properties of Wavelets (CROSBI ID 82186)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Šikić, Hrvoje (with WUTAM consortium)
engleski
Basic Properties of Wavelets
A wavelet multiplier is a function whose product with the Fourier transform of a wavelet is the Fourier transform of a wavelet. We characterize the wavelet multipliers, as well as the scaling function multipliers and low pass filter multipliers. We then prove that, if the set of all wavelet multipliers acts on the set of all MRA wavelets, the orbits are the sets of all MRA wavelets whose Fourier transforms have equal absolute values, and these are also equal to the sets of all MRA wavelets with the corresponding scaling functions having same absolute values of their Fourier transforms. As an application of these techniques we prove that the set of MRA wavelets is arcwise connected in $L^2({ f R})$.
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