Fourier Analysis and Approximation of Functions by Roald M. Trigub, Eduard S. Belinsky.
In Fourier Analysis and Approximation of Functions basics of classical Fourier Analysis are given as well as those of approximation by polynomials, splines and entire functions of exponential type. In Chapter 1 which has an introductory nature, theorems on convergence, in that or another sense, of i...
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