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Konvergenz im Mittel und fast ├╝berall von Fourier-Reihen nach Polynomen, die auf einem Intervall orthogonal sind. (Russian) Zbl 0311.42006


MSC:

42A20 Convergence and absolute convergence of Fourier and trigonometric series
33C45 Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.)
42C05 Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis
42C15 General harmonic expansions, frames
41A10 Approximation by polynomials
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