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Saturation of positive convolution operators. (English) Zbl 0243.42024

MSC:
42A38 Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type
41A40 Saturation in approximation theory
42A85 Convolution, factorization for one variable harmonic analysis
41A35 Approximation by operators (in particular, by integral operators)
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[1] Sunouchi, G; Watari, C, On determination of the saturation, (), 477-481 · Zbl 0086.05502
[2] Tureckiǐ, A.H, On classes of saturation for certain methods of summation of Fourier series of continuous periodic functions, Amer. math. soc. transl., 26, 263-272, (1963), (2) · Zbl 0125.31206
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[7] Curtis, P.C, The degree of approximation by positive convolution operators, Michigan math. J., 12, 155-160, (1965) · Zbl 0138.28502
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[11] On approximation theory, ()
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