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Lacunary Fourier series and a qualitative uncertainty principle for compact Lie groups

Narayanan, EK and Sitaram, A (2011) Lacunary Fourier series and a qualitative uncertainty principle for compact Lie groups. In: Proceedings of the Indian Academy of Sciences - Mathematical Sciences, 121 (1). pp. 77-81.

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Abstract

We define lacunary Fourier series on a compact connected semisimple Lie group G. If f is an element of L-1 (G) has lacunary Fourier series and f vanishes on a non empty open subset of G, then we prove that f vanishes identically. This result can be viewed as a qualitative uncertainty principle.

Item Type: Journal Article
Publication: Proceedings of the Indian Academy of Sciences - Mathematical Sciences
Publisher: Indian academy of sciences
Additional Information: Copyright of this article belongs to Indian academy of sciences.
Keywords: Lacunary Fourier series;uncertainty principles;Weyl's character formula
Department/Centre: Division of Physical & Mathematical Sciences > Mathematics
Date Deposited: 20 Apr 2011 05:15
Last Modified: 20 Apr 2011 05:16
URI: http://eprints.iisc.ac.in/id/eprint/36725

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