Geodesic
Jackson Theorem in the Space $L_2$ on the Interval $[-1,1]$ with Power-Law Weight
Matematičeskie zametki, Tome 84 (2008) no. 1, pp. 136-138.

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Mots-clés : Sturm–Liouville problem
Keywords: best approximation, Hilbert space, Bessel function, modulus of continuity, Fourier series. 
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V. I. Ivanov; D. V. Chertova; Liu Yongping. Jackson Theorem in the Space $L_2$ on the Interval $[-1,1]$ with Power-Law Weight. Matematičeskie zametki, Tome 84 (2008) no. 1, pp. 136-138. http://geodesic.mathdoc.fr/item/MZM_2008_84_1_a11/

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