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The Hilbert Transform of Generalized Functions and Applications

Published online by Cambridge University Press:  20 November 2018

J. N. Pandey
Affiliation:
Carleton University, Ottawa, Ontario
Muhammad Aslam Chaudhry
Affiliation:
Carleton University, Ottawa, Ontario
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The theory of Fourier transforms of tempered distributions as developed by Laurent Schwartz [17] is quite simple and elegant and has wide variety of applications, but there does not exist a corresponding neat and simple theory for the Hilbert transform of generalized functions (distributions) having wide applications. One of the objectives of this paper is to develop such a theory for the Hilbert transform of generalized functions and indicate its applicability to a variety of problems.

In problems of physics sometimes we need to find harmonic functions u(x, y) in the region y > 0 whose limit as y → 0+ does not exist in pointwise sense but does exist in the distributional sense. The theory of Hilbert transform of generalized functions that we are going to develop will provide an answer to the existence and uniqueness of this problem.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1983

References

1. Balescu, R., Statistical mechanics of charged particles, Vol. 4 (Interscience Publishers, 1963).Google Scholar
2. Beltrami, E. J. and Wohlers, M. R., Distributional boundary value theorems and Hilbert transforms, Arch. Rational Mech., Anal. 18 (1965), 304309.Google Scholar
3. Bremermann, H. J., Distributions, complex variables, and Fourier transforms (Addison-Wesley, 1965).Google Scholar
4. Butzer, P. L. and Nessel, R. J., Fourier analysis and approximation, Vol. 1 (Academic Press, 1971).CrossRefGoogle Scholar
5. Gel'fand, I. M. and Shilov, G. E., Generalized functions, Vol. 2 (Academic Press).Google Scholar
6. Lauwerier, H. A., The Hilbert problem for generalized functions, Arch. Rational Mech. Anal. 13 (1963), 157166.Google Scholar
7. Mitrovic, D., A Hilbert distributional boundary value problem, Mathematica Balkanica, 1 (1971), 177180.Google Scholar
8. Mitrovic, D., Some distributional boundary-value problems, Mathematica Balkanica 2 (1972), 161164.Google Scholar
9. Mitrovic, D., Une remarque sur les valeurs au bord des fonctions holomorphes, Mathematica Balkanica 3 (1973), 363367.Google Scholar
10. Mitrovic, D., A distributional representation of analytic functions, Mathematica Balkanica 79 (1974), 437440.Google Scholar
11. Newcomb, R. W., Hilbert transforms — distributional theory, Stanford Electronics Laboratories, Technical report No. 2250–1 (1962).Google Scholar
12. Orton, M., Hilbert transforms, Plemelj relations and Fourier transforms of distributions, SIAM J. Math. Anal. 4 (1973), 656667.Google Scholar
13. Orton, M., Hilbert boundary value problems — A distributional approach, Proc. Royal Soc, Edinburgh 76 A(1977), 193208.Google Scholar
14. Pandey, J. N. and Hughes, E., An approximate Hilbert transform and its inversion, Tohoku Mathematical Jour. 28 (1976), 497509.Google Scholar
15. Rogozin, V. S., A general scheme of solution of boundary value problems in the space of generalized functions, Doklady 164 (1965), 12211225.Google Scholar
16. Rogozin, V. S., On the theory of Riemann's problem in the class Lp, Soviet Math., Doklady 9 (1968), 652655.Google Scholar
17. Schwartz, L., Theorie des distributions (Hermann, Paris, 1966).Google Scholar
18. Titchmarsh, E. C., Introduction to theory of Fourier Integrals (Oxford University Press, 1967).Google Scholar
19. Tricomi, F., Integral equations (Interscience Publishers, N.Y., 1957).Google Scholar
20. Zemanian, A. H., Generalized integral transformation (Interscience Publishers, 1968).Google Scholar
21. Zemanian, A. H., Distribution theory and transform analysis (McGraw-Hill Book Company, 1965).Google Scholar