Premium
The discrete fractional Fourier transform and Harper's equation
Author(s) -
Barker Laurence
Publication year - 2000
Publication title -
mathematika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.955
H-Index - 29
eISSN - 2041-7942
pISSN - 0025-5793
DOI - 10.1112/s0025579300015898
Subject(s) - mathematics , fractional fourier transform , discrete fourier transform (general) , fourier transform , limiting , discrete time fourier transform , mathematical analysis , non uniform discrete fourier transform , fourier transform on finite groups , fourier analysis , mechanical engineering , engineering
It is shown that the discrete fractional Fourier transform recovers the continuum fractional Fourier transform via a limiting process whereby inner products are preserved.