A convolution inequality concerning Cantor-Lebesgue measures.
Michael Christ (1985)
Revista Matemática Iberoamericana
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Michael Christ (1985)
Revista Matemática Iberoamericana
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Jörgen Löfström (1976)
Studia Mathematica
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T. Ostrogorski (1979)
Publications de l'Institut Mathématique [Elektronische Ressource]
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T. Godoy, E. Ferreya, U. Urciuolo (1997)
The journal of Fourier analysis and applications [[Elektronische Ressource]]
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Philippe Jaming (2010)
Colloquium Mathematicae
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The aim of this paper is to show that, in various situations, the only continuous linear (or not) map that transforms a convolution product into a pointwise product is a Fourier transform. We focus on the cyclic groups ℤ/nℤ, the integers ℤ, the torus 𝕋 and the real line. We also ask a related question for the twisted convolution.
Christian Berg, Jesper Laub (1979)
Bulletin de la Société Mathématique de France
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Maria Roginskaya, Michaël Wojciechowski (2004)
Annales de l’institut Fourier
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We study different conditions on the set of roots of the Fourier transform of a measure on the Euclidean space, which yield that the measure is absolutely continuous with respect to the Lebesgue measure. We construct a monotone sequence in the real line with this property. We construct a closed subset of which contains a lot of lines of some fixed direction, with the property that every measure with spectrum contained in this set is absolutely continuous. We also give examples of sets...
Mischa Cotlar, Cora Sadowsky (1975)
Studia Mathematica
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Marko Nedeljkov, Stevan Pilipović (1992)
Publications de l'Institut Mathématique
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Tadeusz Iwaniec, Gaven Martin (1995)
Journal für die reine und angewandte Mathematik
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