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ISSN 2072-3172

№1 (18), 2012. MATHEMATICS AND SCIENCE

Kozlovskaya T D

On Up-sets for the Walsh functions system

In this paper it is provedthat the union of the countable set of closed Up-sets (p?2) for the Walsh functions system is Up-set for this system again.

Keywords: set of uniqueness, zero-series, core of a zero-series.

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