Approximation of sine-shaped functions by constants in the spaces L p , p

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Best approximation of reproducing kernels of spaces of analytic functions

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Estimation of the best approximation of periodic functions of two variables by an “angle” in the metric of L _p

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Approximation of Functions in the Spaces L _p (ℜ) by Means of Shifts and Contractions of One Function

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On approximation by rational functions with prescribed numerator degree in L^p spaces

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