Brief Communications

Bernstein-Type estimates for periodic functions of several variables with generalized smoothness

N. V. Laktionova, K. V. Runovskii, O. A. Shpyrko

Sevastopol Branch of the M.V. Lomonosov Moscow State University

Keywords: generalized derivative, best approximation, Bernstein inequality, inverse theorem of approximation theory.

MSC: 41A17

Received: 13.10.2024

DOI: 10.4213/mzm14539

 English version: Mathematical Notes, 2025, 117:4, 673–676

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