Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-03T08:22:28.418Z Has data issue: false hasContentIssue false

Eigenfunction expansion of generalized functions

Published online by Cambridge University Press:  22 January 2016

J. N. Pandey
Affiliation:
Centre de Recherches Mathematiques, Université de Montréal and Department of Mathematics, Carleton University
R. S. Pathak
Affiliation:
Centre de Recherches Mathematiques, Université de Montréal and Department of Mathematics, Carleton University
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Expansions of generalized functions have been investigated by many authors. Korevaar [11], Widlund [20], Giertz [8], Walter [19] developed procedures for expanding generalized functions of Korevaar [12], Temple [17], and Lighthill [13], Expansions of certain Schwartz distributions [15] into series of orthonormal functions were given by Zemanian [23] (see also Zemanian [24]) and thereby he extended a number of integral transforms to distributions. The method involved in his work is very much related to the Hilbert space technique and is of somewhat different character from those used in most of the works on integral transforms such as [24, chapters 1-8]. Other works that discuss orthogonal series expansions involving generalized functions are by Bouix [1, chapter 7], Braga and Schönberg [2], Gelfand and Shilov [7, vol. 3, chapter 4] and Warmbrod [21].

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1978

References

[1] Bouix, M., Les fonctions généralisées ou distributions, Masson, Paris, (1964).Google Scholar
[2] Braga, C. L. R. and Schonberg, M., Formal series and distributions. An de Acad. Brasileira de Ciências, 31 (1959), 333360.Google Scholar
[3] Churchill, R. V., Fourier series and boundary value problems, McGraw-Hill, New York, (1963).Google Scholar
[4] Dube, L. S., Finite Hankel transformation of a class of generalized functions, Pacific J. Math., 62 (2) (1976), 365378.Google Scholar
[5] Erdélyi, A. (Editor), Higher Transcendental functions, Vol. 11 McGraw-Hill, New York, (1953).Google Scholar
[6] Eringen, A. C., The finite Sturm-Liouville transform, Quart. J. Math. Oxford, (2), 5 (1954), 120129.Google Scholar
[7] Gelfand, I. M. and Shilov, G. E., Generalized functions, vols. 1 and 3 Academic Press, New York, (1964), (1967).Google Scholar
[8] Giertz, M., On the expansion of certain generalized functions in series of orthogonal functions, Proc. London Math. Soc., 3rd ser., 14 (1964), 4552.CrossRefGoogle Scholar
[9] Ince, E. L., Ordinary differential equations, Dover publications, New York, (1926).Google Scholar
[10] Jahnke, E., Emde, F. and Losch, F., Tables of higher functions, McGraw-Hill, New York, (1960).Google Scholar
[11] Korevaar, J., Pansions and the theory of Fourier Transforms, Trans. Amer. Math. Soc, 91 (1959), 53101.Google Scholar
[12] Korevaar, J., Distributions defined from the point of view of applied mathematics, Kon. Ned. Akad. Wetensch. Proc. Ser. A, 58 (1955), 368389, 483503, 663674.Google Scholar
[13] Lighthill, M. J., Fourier analysis and generalized functions, Cambridge Univ. Press, (1958).Google Scholar
[14] Naimark, M. A., Linear differential operators part II, Frederick Ungar Publishing Co., New York, (1968).Google Scholar
[15] Schwartz, L., Theore des Distributions, Vol. I, II, Hermann, Paris (1957), (1959).Google Scholar
[16] Sneddon, I. N., The use of integral transforms, McGraw-Hill, New York, (1972).Google Scholar
[17] Temple, G., The theory of generalized functions, Proc. Roy. Soc, Ser. A, 228 (1955), 175190.Google Scholar
[18] Titchmarsh, E. C, Eigenfunction expansions associated with second order differential equations, Vol 1, Clarendon Press, Oxford, (1946).Google Scholar
[19] Walter, G. G., Expansions of distributions, Trans. Amer. Math. Soc, 116 (1965), 492510.CrossRefGoogle Scholar
[20] Widlund, O., On the expansion of generalized functions in series of Hermite functions, Kgl. Tekn. Hogsk. Mandl. Stockholm, No. 173, (1961).Google Scholar
[21] Warmbrod, G. K., The distributional finite Fourier transform, SIAM J. Appl. Math., 17(5), (1969), 930956.CrossRefGoogle Scholar
[22] Yosida, K., Lectures on differential and integral equations, Interscience Publishers, New York, (1960).Google Scholar
[23] Zemanian, A. H., Orthonormal series expansions of certain distributions and distributional transform calculus, J. Math. Analysis and App. 14, No. 2 (1966), 263275.Google Scholar
[24] Zemanian, A. H., Generalized integral transformations, Interscience Publishers, New York, (1968).Google Scholar