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An Introduction to Basic Fourier Series (Paperback, Softcover reprint of hardcover 1st ed. 2003)
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An Introduction to Basic Fourier Series (Paperback, Softcover reprint of hardcover 1st ed. 2003)
Series: Developments in Mathematics, 9
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It was with the publication of Norbert Wiener's book ''The Fourier
In tegral and Certain of Its Applications" [165] in 1933 by
Cambridge Univer sity Press that the mathematical community came to
realize that there is an alternative approach to the study of
c1assical Fourier Analysis, namely, through the theory of c1assical
orthogonal polynomials. Little would he know at that time that this
little idea of his would help usher in a new and exiting branch of
c1assical analysis called q-Fourier Analysis. Attempts at finding
q-analogs of Fourier and other related transforms were made by
other authors, but it took the mathematical insight and instincts
of none other then Richard Askey, the grand master of Special
Functions and Orthogonal Polynomials, to see the natural connection
between orthogonal polynomials and a systematic theory of q-Fourier
Analysis. The paper that he wrote in 1993 with N. M. Atakishiyev
and S. K Suslov, entitled "An Analog of the Fourier Transform for a
q-Harmonic Oscillator" [13], was probably the first significant
publication in this area. The Poisson k~rnel for the contin uous
q-Hermite polynomials plays a role of the q-exponential function
for the analog of the Fourier integral under considerationj see
also [14] for an extension of the q-Fourier transform to the
general case of Askey-Wilson polynomials. (Another important
ingredient of the q-Fourier Analysis, that deserves thorough
investigation, is the theory of q-Fourier series.
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