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Found 567 Documents (Results 1–100)

Generalized Bernoulli numbers, cotangent power sums, and higher-order arctangent numbers. (English) Zbl 1508.11031

Nathanson, Melvyn B. (ed.), Combinatorial and additive number theory V. Selected papers based on the presentations at the CANT 2021 workshop, New York, NY, USA, virtual event, May 24–28, 2021. Cham: Springer. Springer Proc. Math. Stat. 395, 253-261 (2022).
MSC:  11B68 33E05 11L03
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On the \(L^p\)-greedy universal functions with respect to the generalized Walsh system. (English. Russian original) Zbl 1510.42038

J. Contemp. Math. Anal., Armen. Acad. Sci. 57, No. 6, 332-343 (2022); translation from Izv. Nats. Akad. Nauk Armen., Mat. 57, No. 6, 17-31 (2022).
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On one generalized translation and the corresponding inequality of different metrics. (English. Russian original) Zbl 07667149

Proc. Steklov Inst. Math. 319, Suppl. 1, S30-S42 (2022); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 28, No. 4, 40-53 (2022).
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Realization functionals and description of a modulus of smoothness in variable exponent Lebesgue spaces. (English. Russian original) Zbl 07644822

Russ. Math. 66, No. 6, 8-19 (2022); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2022, No. 6, 13-25 (2022).
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Inverse theorems on the approximation of periodic functions with high generalized smoothness. (English. Russian original) Zbl 1485.42003

Math. Notes 111, No. 2, 320-323 (2022); translation from Mat. Zametki 111, No. 2, 312-315 (2022).
MSC:  42A10 41A50 46E35
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Toeplitz matrices and operators. Translated from the French by Danièle Gibbons and Greg Gibbons. (English) Zbl 1466.15001

Cambridge Studies in Advanced Mathematics 182. Cambridge: Cambridge University Press (ISBN 978-1-107-19850-0/hbk; 978-1-108-18257-7/ebook). xxii, 430 p. (2020).
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Comparison of V- and S-Dini tests. Counterexamples for symmetric Dini tests with respect to generalized Haar and Walsh systems. (English. Russian original) Zbl 1442.42066

Russ. Math. 63, No. 9, 63-83 (2019); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2019, No. 9, 73-95 (2019).
MSC:  42C10 42A20
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A note on the generalized Cesàro means of trigonometric Fourier series. (A note on the generalized Cesáro means of trigonometric Fourier series.) (English) Zbl 1451.42007

J. Contemp. Math. Anal., Armen. Acad. Sci. 54, No. 5, 263-267 (2019) and Izv. Nats. Akad. Nauk Armen., Mat. 2019, No. 5, 3-10 (2019).
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