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Fractional convolution

Published online by Cambridge University Press:  17 February 2009

David Mustard
Affiliation:
School of Mathematics, University of New South Wales, Sydney, Australia2052.
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Abstract

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A continuous one-parameter set of binary operators on L2(R) called fractional convolution operators and which includes those of multiplication and convolution as particular cases is constructed by means of the Condon-Bargmann fractional Fourier transform. A fractional convolution theorem generalizes the standard Fourier convolution theorems and a fractional unit distribution generalizes the unit and delta distributions. Some explicit double-integral formulas for the fractional convolution between two functions are given and the induced operation between their corresponding Wigner distributions is found.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1998

References

[1]Bargmann, V., “On a Hilbert space of analytic functions and an associated integral transform. Part IComm. Pure Appl. Math. 14 (1961) 187214.CrossRefGoogle Scholar
[2]Claasen, T. A. C. M. and Mecklenbräuker, W.F.G., “The Wigner distribution - a tool for time- frequency signal analysis III”, Philips J. Res. 35 (1980) 372389.Google Scholar
[3]Cohen, L., “Generalized phase-space distribution functions”, J. of Math. Phys. 7 (1966) 781786.CrossRefGoogle Scholar
[4]Condon, E. U., “Immersion of the Fourier transform in a continuous group of functional transformations”, Proc. Nat. Acad. Sci.USA 23 (1937) 158164.CrossRefGoogle Scholar
[5]Deans, S. R., The Radon transform and some of its applications (John Wiley, New York, 1983).Google Scholar
[6]Dym, H. and McKean, H.P., Fourier Series and Integrals (Academic Press, New York, 1972).Google Scholar
[7]Folland, G. B., “Harmonic analysis in phase space”, in Annals of Mathematics Studies 122, (Princeton Univ. Press, Princeton, 1989).Google Scholar
[8]Mustard, D., “The fractional Fourier transform and the Wigner distribution”, J. Austral. Math. Soc. Ser.B 38 (1996) 209219.CrossRefGoogle Scholar
[9]Mustard, D., “Lie group imbeddings of the Fourier transform and a new family of uncertainty principles”, Proceedings of the Centre for Mathematical Analysis 16 (1987) 211222.Google Scholar
[10]Papoulis, A., Signal Analysis (McGraw-Hill, New York, 1977).Google Scholar
[11]Wigner, E., “On the quantum correction for thermodynamic equilibrium”, Phys. Rev. 40 (1932) 749759.CrossRefGoogle Scholar