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1Academic Journal
Authors: H.M. Vlasyk, V.V. Sobchuk, V.V. Shkapa, I.V. Zamrii
Source: Karpatsʹkì Matematičnì Publìkacìï, Vol 14, Iss 1, Pp 147-157 (2022)
Subject Terms: bernstein-nikol'skii inequality, $(\psi, \beta)$-derivative, QA1-939, Mathematics
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2Academic Journal
Authors: Zhyhallo, K.M., Kharkevych, Yu.I.
Source: Carpathian Mathematical Publications; Vol. 16 No. 1 (2024); 303-308 ; Карпатські математичні публікації; Том 16 № 1 (2024); 303-308 ; 2313-0210 ; 2075-9827
Subject Terms: $(\psi,\beta)$-derivative, Kolmogorov-Nikol'skii problem, biharmonic Poisson integral, integral metric, $(\psi,\beta)$-похідна, задача Колмогорова-Нiкольського, бігармонічний iнтеграл Пуассона, інтегральна метрика
File Description: application/pdf; text/html
Relation: https://journals.pnu.edu.ua/index.php/cmp/article/view/7282/8366; https://journals.pnu.edu.ua/index.php/cmp/article/view/7282/8367; https://journals.pnu.edu.ua/index.php/cmp/article/view/7282
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3Academic Journal
Authors: Novikov, O. O., Rovenska, O. G.
Source: Karpatsʹkì Matematičnì Publìkacìï, Vol 5, Iss 1, Pp 102-109 (2013)
Carpathian Mathematical Publications; Vol 5, No 1 (2013); 102-109
Карпатские математические публикации; Vol 5, No 1 (2013); 102-109
Карпатські математичні публікації; Vol 5, No 1 (2013); 102-109Subject Terms: eta)$-derivative, Задача Колмогорова-Никольского, $(\psi,\beta)$-производная, прямоугольные суммы Фурье, $(\psi, $(psi, Задача Колмогорова-Нікольського, $(\psi,\beta)$-похідна, прямокутні суми Фур'є, Kolmogorov-Hikol'skii problem, $(\psi,\beta)$-derivative, right-angled Fourier sums, QA1-939, right-angled fourier sums, Kolmogorov--Hikol'skii problem, kolmogorov-hikol'skii problem, right-angled Fourier sums, Mathematics, \beta)$-derivative
File Description: application/pdf; text/html
Access URL: https://doaj.org/article/0a194352aba24464820dfa0d36af704f
https://doaj.org/article/2941211003f2425db040c976a5808c76
https://doaj.org/article/2941211003f2425db040c976a5808c76
https://paperity.org/p/218146885/approximation-of-the-periodical-functions-of-high-smoothness-by-the-rightangled-fourier
https://cbt.pu.if.ua/index.php/cmp/article/download/3657/4215
https://cbt.pu.if.ua/index.php/cmp/article/view/3657
http://journals.pu.if.ua/index.php/cmp/article/view/167 -
4Academic Journal
Authors: Vakarchuk, S.B.
Source: Researches in Mathematics; Vol 25 (2017); 3-13 ; 2664-5009 ; 2664-4991 ; 10.15421/24172501
Subject Terms: best polynomial approximation, modulus of continuity, $$$(\psi,\beta)$$$-derivative, Fourier series, наилучшее полиномиальное приближение, модуль непрерывности, $$$(\psi,\beta)$$$-производные, ряд Фурье, найкраще полiномiальне наближення, модуль неперервностi, $$$(\psi,\beta)$$$-похiдна, ряд Фур'є
File Description: application/pdf
Relation: https://vestnmath.dnu.dp.ua/index.php/rim/article/view/81/81; https://vestnmath.dnu.dp.ua/index.php/rim/article/view/81
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5Academic Journal
Authors: V. T. Gavrilyuk
Source: Ukrainian Mathematical Journal. 42:659-666
Subject Terms: \((\psi,\beta)\)-derivative, Trigonometric approximation, approximation of continuous periodic functions by Fourier sums, asymptotic estimates, 0101 mathematics, 01 natural sciences
Linked Full TextFile Description: application/xml
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6Electronic Resource
Authors: Vakarchuk, S.B.
Source: Researches in Mathematics; Vol 25 (2017); 3-13; Researches in Mathematics; Vol 25 (2017); 3-13; Researches in Mathematics; Vol 25 (2017); 3-13; 2664-5009; 2664-4991; 10.15421/24172501
Index Terms: best polynomial approximation; modulus of continuity; $$$(\psi,\beta)$$$-derivative; Fourier series, info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion