P. A. Borodin, Yu. A. Skvortsov, “Approximation of a two-variate function by linear combinations of its crosses”, Mat. Sb., 2026, Volume 217, Number 4,Pages <nobr>42–65</nobr>

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Mat. Sb., 2026 Volume 217, Number 4, Pages 42–65 (Mi sm10296)

Approximation of a two-variate function by linear combinations of its crosses

P. A. Borodin^ab, Yu. A. Skvortsov^ab

^a Faculty of Mechanics and Mathematics, Lomonosov Moscow State University, Moscow, Russia
^b Moscow Center of Fundamental and Applied Mathematics, Moscow, Russia

Received: 25.02.2025 and 16.10.2025

DOI: 10.4213/sm10296

© Steklov Math. Inst. of RAS, 2026