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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

A $q$-analogue of the Whittaker-Shannon-Kotel'nikov sampling theorem

Author(s): Mourad E. Ismail; Ahmed I. Zayed
Journal: Proc. Amer. Math. Soc. 131 (2003), 3711-3719.
MSC (2000): Primary 33B10, 33D15; Secondary 42C15, 94A11
Posted: July 17, 2003
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Abstract: The Whittaker-Shannon-Kotel'nikov (WSK) sampling theorem plays an important role not only in harmonic analysis and approximation theory, but also in communication engineering since it enables engineers to reconstruct analog signals from their samples at a discrete set of data points. The main aim of this paper is to derive a $q$-analogue of the Whittaker-Shannon-Kotel'nikov sampling theorem. The proof uses recent results in the theory of $q$-orthogonal polynomials and basic hypergeometric functions, in particular, new results on the addition theorems for $q$-exponential functions.


References:

1.
G. E. Andrews, R. A. Askey, and R. Roy, Special Functions, Cambridge University Press, Cambridge, 1999. MR 2000g:33001

2.
R. Askey and M. E. H. Ismail, A generalization of ultraspherical polynomials, in ``Studies in Pure Mathematics'', P. Erdos, ed., Birkhäuser, Basel, 1983, pp. 55-78. MR 87a:33015

3.
J. Bustoz and S. Suslov, Basic analog of Fourier series on a q-quadratic grid, Methods and Applications of Analysis, 5 (1998), 1-38. MR 99e:33020

4.
G. Gasper and M. Rahman, Basic Hypergeometric Series, Cambridge University Press, 1990. MR 91d:33034

5.
M. E. H. Ismail, The zeros of basic Bessel functions, the functions $J_{\nu +ax}\left( x\right) $ and the associated orthogonal polynomials, J. Math. Anal. Appl. 86 (1982), 1-19. MR 83c:33010

6.
M. E. H. Ismail, Orthogonality and completeness of $q$-Fourier type systems, Zeitschrift für Analysis und Ihre Anwendungen, 20 (2001), 761-775. MR 2003d:42013

7.
M. E. H. Ismail and R. Zhang, Diagonalization of certain integral operators, Advances in Math. 109 (1994), 1-33. MR 96d:39005

8.
M. Ismail and D. Stanton, Addition theorems for the q-exponential functions, in ``$q$-Series from a Contemporary Perspective", Contemporary Mathematics, M. E. H. Ismail and D. Stanton, eds., American Mathematical Society, Providence, RI, 2000, pp. 235-245. MR 2001a:33001

9.
T. Koornwinder and R. Swarttouw, On q-analogues of the Fourier and Hankel transforms, Trans. Amer. Math. Soc., 333 (1992), 445-461. MR 92k:33013

10.
N. Levinson, Gap and Density Theorems, Amer. Math. Soc. Colloq. Publ. Ser., Vol. 26, 1940. MR 2:180d

11.
R. Paley and N. Wiener, The Fourier Transforms in the Complex Domain, Amer. Math. Soc. Colloq. Publ. Ser., Vol. 19, Providence, RI, 1934. MR 98a:01023

12.
S. Suslov, Addition theorems for some $q$-exponential and trigonometric functions, Methods and Applications of Anal., 4 (1997), 11-32. MR 98i:33023

13.
A. I. Zayed, Advances in Shannon's Sampling Theory, CRC Press, Boca Raton, FL, 1993. MR 95f:94008

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Additional Information:

Mourad E. Ismail
Affiliation: Department of Mathematics, University of Central Florida, Orlando, Florida 32816
Email: ismail@math.usf.edu

Ahmed I. Zayed
Affiliation: Department of Mathematical Sciences, DePaul University, Chicago, Illinois, 60614
Email: azayed@math.depaul.edu

DOI: 10.1090/S0002-9939-03-07208-3
PII: S 0002-9939(03)07208-3
Keywords: Shannon sampling theorem, band-limited and sinc functions, $q$-trigonometric series, basic hypergeometric functions
Received by editor(s): February 19, 2002
Posted: July 17, 2003
Additional Notes: Research partially supported by NSF grant DMS 99-70865 and the Liu Bie Ju Centre of Mathematical Sciences
Communicated by: David R. Larson
Copyright of article: Copyright 2003, American Mathematical Society


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