2001
DOI: 10.1090/s0002-9939-01-06318-3
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The uncertainty principle on Riemannian symmetric spaces of the noncompact type

Abstract: Abstract. The uncertainty principle in R n says that it is impossible for a function and its Fourier transform to be simultaneously very rapidly decreasing. A quantitative assertion of this principle is Hardy's theorem. In this article we prove various generalisations of Hardy's theorem for Riemannian symmetric spaces of the noncompact type. In the case of the real line these results were obtained by Morgan and Cowling-Price.

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Cited by 15 publications
(8 citation statements)
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“…It is based on a reduction to a Euclidean situation by means of the Radon transform. This is a powerful technique that is commonly used to attack problems related to the uncertainty principle on symmetric spaces as well as on Euclidean spaces; see for instance [22,23,21,20]. In our situation, the important feature is that for functions satisfying (1), the composition of the Radon transform and a Euclidean Fourier transform gives the Helgason-Fourier transform.…”
Section: Introductionmentioning
confidence: 99%
“…It is based on a reduction to a Euclidean situation by means of the Radon transform. This is a powerful technique that is commonly used to attack problems related to the uncertainty principle on symmetric spaces as well as on Euclidean spaces; see for instance [22,23,21,20]. In our situation, the important feature is that for functions satisfying (1), the composition of the Radon transform and a Euclidean Fourier transform gives the Helgason-Fourier transform.…”
Section: Introductionmentioning
confidence: 99%
“…Ebata [17] had analyzed a semi simple Lie groups. J. Sengupta [18] had studied Riemannian symmetric spaces. In Electromagnetic Imaging problems, Ghodgaonkar [19] proposed that the group representation theory to solve problems of electromagnetic imaging.…”
Section: A Insulator Defect Detection Methods and Group Theorymentioning
confidence: 99%
“…The logarithm map log R0 and exponential map exp R0 at R 0 on SO n associated with the Riemannian metric can be expressed in terms of the usual matrix logarithm log and exponential exp, it satisfies equation (18) and equation( 19) [34].…”
Section: F ()]mentioning
confidence: 99%
“…Part (a) of Hardy's theorem was proved in [20], [4], [6], while part (b) was proved in [16], [22]. Part (a) of Cowling-Price theorem was proved in [19] and in [17] and part (b) was proved in [18]. Part (a) of Morgan's theorem was proved in [19].…”
Section: Consequences Of Beurling's Theoremmentioning
confidence: 98%
“…This shows that Beurling's theorem is the Master theorem. Some of the latter theorems (which follow from Beurling's) were proved independently on symmetric spaces in recent years by many authors (see [20,4,6,16,17,19,22,18] etc. ).…”
Section: Introductionmentioning
confidence: 96%