1.
Vakarchuk SB. Jackson-Type Inequalities for the Special Moduli of Continuity on the Entire Real Axis and the Exact Values of Mean $ν$ - Widths for the Classes of Functions in the Space $L_2 (ℝ)$. Ukr. Mat. Zhurn. [Internet]. 2014Jun.25 [cited 2024Nov.22];66(6):740–766. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2175