On best convergence
Sbornik. Mathematics, Tome 192 (2001) no. 2, pp. 277-297 Cet article a éte moissonné depuis la source Math-Net.Ru

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Best convergence with respect to the $\mathbf L_p$-norm is studied for series in various complete orthonormal systems of functions.
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A. I. Rubinshtein. On best convergence. Sbornik. Mathematics, Tome 192 (2001) no. 2, pp. 277-297. http://geodesic.mathdoc.fr/item/SM_2001_192_2_a6/

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