Geodesic
Pointwise estimates from below of the moduli of the derivatives of orthogonal polynomials on of the derivatives of orthogonal polynomials on
Sbornik. Mathematics, Tome 186 (1995) no. 6, pp. 771-781 
V. M. Badkov. Pointwise estimates from below of the moduli of the derivatives of orthogonal polynomials on of the derivatives of orthogonal polynomials on. Sbornik. Mathematics, Tome 186 (1995) no. 6, pp. 771-781. http://geodesic.mathdoc.fr/item/SM_1995_186_6_a0/
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     title = {Pointwise estimates from below of the~moduli of the~derivatives of orthogonal polynomials on of the~derivatives of orthogonal polynomials~on},
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     url = {http://geodesic.mathdoc.fr/item/SM_1995_186_6_a0/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

A result of the author is generalized concerning pointwise estimates from below of the derivatives of algebraic polynomials that are orthogonal on the circle with a weight whose singularities are constructed from the products of powers of concave moduli of continuity.

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