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Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika, 2019, Number 4, Pages 42–46
(Mi vmumm640)
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Short notes
Union of $U_r$-sets for the system of characters of the group of $p$-adic numbers
T. D. Kozlovskaya Moscow State Technological University "Stankin"
Abstract:
The following theorem is proved: the union of countable many closed $U_{r}$-sets ($r>2$)
for the Vilenkin–Dzhafarli system is again a $U_{r}$-set for this system.
Key words:
group of $p$-adic intergers, zero-dimensional group, characters of a group, Vilenkin–Dzhafarli system, $U_r$-sets.
Received: 27.06.2018
Citation:
T. D. Kozlovskaya, “Union of $U_r$-sets for the system of characters of the group of $p$-adic numbers”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2019, no. 4, 42–46
Linking options:
https://www.mathnet.ru/eng/vmumm640 https://www.mathnet.ru/eng/vmumm/y2019/i4/p42
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