Geodesic
On the Titchmarsh Convolution Theorem for Distributions on the Circle
Funkcionalʹnyj analiz i ego priloženiâ, Tome 47 (2013) no. 1, pp. 26-32.

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We prove a version of the Titchmarsh convolution theorem for distributions on the circle. We show that a certain “naïve” form of the Titchmarsh theorem can be violated, but only for the convolution of distributions with certain symmetry properties.
Keywords: Titchmarsh convolution theorem, symmetry properties, periodic distributions. 
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A. A. Komech; A. I. Komech. On the Titchmarsh Convolution Theorem for Distributions on the Circle. Funkcionalʹnyj analiz i ego priloženiâ, Tome 47 (2013) no. 1, pp. 26-32. http://geodesic.mathdoc.fr/item/FAA_2013_47_1_a2/

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