Geodesic
Lebesgue functions for Haar system on compact zero-dimensional group
Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 12 (2012) no. 3, pp. 30-36.

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In this article we discuss Lebesgue functions for Haar system on compact zero-dimensional group. We find cases when they are constant, also we find two-sided estimates for Lebesgue functions. 
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N. E. Komissarova. Lebesgue functions for Haar system on compact zero-dimensional group. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 12 (2012) no. 3, pp. 30-36. http://geodesic.mathdoc.fr/item/ISU_2012_12_3_a4/

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