Geodesic
Sharp estimates for the convergence rate of Fourier–Bessel series
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 55 (2015) no. 6, pp. 917-927 Cet article a éte moissonné depuis la source Math-Net.Ru

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Sharp estimates are derived for the convergence rate of Fourier series in terms of Bessel functions of the first kind for some classes of functions characterized by a generalized modulus of continuity. The Kolmogorov $N$-width of these classes of functions are also estimated. 
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V. A. Abilov; F. V. Abilova; M. K. Kerimov. Sharp estimates for the convergence rate of Fourier–Bessel series. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 55 (2015) no. 6, pp. 917-927. http://geodesic.mathdoc.fr/item/ZVMMF_2015_55_6_a1/

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