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Uncertainty principles like Hardy's theorem on some Lie groups

Part of: Lie groups

Published online by Cambridge University Press:  09 April 2009

S. C. Bagchi
Affiliation:
Stat-Math Division, Indian Statistical Institute, 203, B. T. Road, Calcutta 700 035, India e-mail: [email protected] & [email protected]
Swagato K. Ray
Affiliation:
Stat-Math Division, Indian Statistical Institute, 203, B. T. Road, Calcutta 700 035, India e-mail: [email protected] & [email protected]
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Abstract

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We extend an uncertainty principle due to Cowling and Price to Euclidean spaces, Heisenberg groups and the Euclidean motion group of the plane. This uncertainty principle is a generalisation of a classical result due to Hardy. We also show that on the real line this uncertainty principle is almost equivalent to Hardy's theorem.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1998

References

[1]Cowling, M. G. and Price, J. F., ‘Generalizations of Heisenberg's inequality’, in: Harmonic analysis (eds. Mauceri, G., Ricci, F. and Weiss, G.), LNM, no.992 (Springer, Berlin, 1983) pp. 443449.Google Scholar
[2]Folland, G. B., A course in abstract Harmonic Analysis (CRC Press. London, 1995).Google Scholar
[3]Folland, G. B. and Sitaram, A., ‘The uncertainty principles: A mathematical survey’, J. Fourier Anal. Appl. 3 (1997), 207238.CrossRefGoogle Scholar
[4]Hardy, G. H., ‘A theorem concerning Fourier transform’, J. London Math. Soc. 8 (1933), 227231.Google Scholar
[5]Havin, V. and Joricke, B., The uncertainty principle in harmonic analysis (Springer, Berlin, 1994).CrossRefGoogle Scholar
[6]Hörmander, L., ‘A uniqueness theorem of Beurling for Fourier transform pairs’, Ark. Mat. 29 (1991), 237240.CrossRefGoogle Scholar
[7]Kleppner, A. and Lipsman, R. L., ‘The Plancherel formula for group extensions (II)’, Ann. Sci. Ecole. Norm. Sup. (4), 6 (1973), 103132.CrossRefGoogle Scholar
[8]Morgan, G. W., ‘A note on Fourier transforms’, J. London Math. Soc. 9 (1934), 187192.Google Scholar
[9]Parthasarathy, K. R., Multipliers on locally compact groups, LNM, no. 93 (Springer, Berlin, 1969).Google Scholar
[10]Sitaram, A. and Sundari, M., ‘An analogue of Hardy's theorem for very rapidly decreasing functions on semisimple Lie groups’, Pacific J. Math. 177 (1997), 187200.Google Scholar
[11]Sitaram, A., Sundari, M. and Thangavelu, S., ‘Uncertainty principles on certain Lie groups’, Proc. Ind. Acad. Sci. (Math. Sci.) 105 (1995), 135151.Google Scholar
[12]Sugiura, M., Unitary representations and Harmonic Analysis, an introduction (Kodansha Scientific books, Tokyo, 1975).Google Scholar
[13]Sundari, M., ‘Hardy's theorem for the n-dimensional Euclidean motion group’, Proc. Amer. Math. Soc. 126 (1998), 11991204.CrossRefGoogle Scholar