Expansion over a system of shifts of pyramidal functions with a square base

DOI10.3103/S0027132214030012zbMATH Open1311.41005MaRDI QIDQ2018025

S. M. Lytkin

Publication date: 24 March 2015

Published in: Moscow University Mathematics Bulletin (Search for Journal in Brave)

zbMATH Keywords

best approximation by piecewise linear functionsquadratic pyramidssystem of shifts

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Multidimensional problems (41A63) Spline approximation (41A15)

Cites Work

• Expansion over a system of shifts of pyramidal functions
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