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Scientific notes and problems
On the order of approximation of functions of class $Z_1$ by positive linear polynomial operators
I. M. Petrov
Received: 18.07.1960
Citation:
I. M. Petrov, “On the order of approximation of functions of class $Z_1$ by positive linear polynomial operators”, Russian Math. Surveys, 19:2 (1964)
Linking options:
https://www.mathnet.ru/eng/rm6193 https://www.mathnet.ru/eng/rm/v19/i2/p151
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