I. M. Petrov, “Order of approximation of functions of class <nobr>$Z$</nobr> by certain polynomial operators”, Uspekhi Mat. Nauk, 1958, Volume 13, Issue 6(84),Pages <nobr>127

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Uspekhi Mat. Nauk, 1958 Volume 13, Issue 6(84), Pages 127–131 (Mi rm7504)

Scientific notes and problems

Order of approximation of functions of class $Z$ by certain polynomial operators

I. M. Petrov

Received: 11.07.1957

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