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Found 496 Documents (Results 1–100)

Basis properties of the Haar system in limiting Besov spaces. (English) Zbl 1487.42066

Ciatti, Paolo (ed.) et al., Geometric aspects of harmonic analysis. Proceedings of the INdAM meeting, Cortona, Italy, June 25–29, 2018. Cham: Springer. Springer INdAM Ser. 45, 361-424 (2021).
MSC:  42C10 46E35
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On the Bellman function method for operators on martingales. (English. Russian original) Zbl 1477.42027

Dokl. Math. 103, No. 3, 118-121 (2021); translation from Dokl. Ross. Akad. Nauk, Mat. Inform. Protsessy Upr. 498, 27-30 (2021).
MSC:  42C10 60G42
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Discrete wavelet transforms in Walsh analysis. (English. Russian original) Zbl 1470.42063

J. Math. Sci., New York 257, No. 1, 127-137 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 160, 126-136 (2019).
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Estimation of some approximating characteristics of the classes of periodic functions of one and many variables. (English. Ukrainian original) Zbl 07622914

Ukr. Math. J. 71, No. 8, 1257-1272 (2020); translation from Ukr. Mat. Zh. 71, No. 8, 1102-1115 (2019).
MSC:  42A10 41A46
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Two consequences of the associativity condition for a hypercomplex system with locally compact basis. (English) Zbl 1426.43005

Kuchment, Peter (ed.) et al., Functional analysis and geometry. Selim Grigorievich Krein centennial. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 733, 73-80 (2019).
MSC:  43A62
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On generalization of Haar system and other function systems in spaces \(E_\phi\). (English. Russian original) Zbl 1392.42026

Russ. Math. 62, No. 1, 76-81 (2018); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2018, No. 1, 87-92 (2018).
MSC:  42C10 46E30 42C30
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Generalized absolute convergence of series of Fourier coefficients with respect to Haar type systems. (English. Russian original) Zbl 1396.42007

Russ. Math. 62, No. 1, 7-16 (2018); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2018, No. 1, 10-20 (2018).
MSC:  42C10
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Sparse approximation of some function classes with respect to multiple Haar system on the unit cube. (English) Zbl 1494.46030

Kal’menov, Tynysbek (ed.) et al., International conference ‘Functional analysis in interdisciplinary applications’, FAIA2017, Astana, Kazakhstan, October 2–5, 2017. Proceedings. Melville, NY: American Institute of Physics (AIP). AIP Conf. Proc. 1880, 030017, 4 p. (2017).
MSC:  46E35 41A30 41A63
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Construction and properties of Haar-Vilenkin wavelets. (English) Zbl 1396.42014

Manchanda, Pammy (ed.) et al., Industrial mathematics and complex systems. Emerging mathematical models, methods and algorithms. Based on the presentations at the international conference, Greater Noida, India, January 29–31, 2016. Singapore: Springer (ISBN 978-981-10-3757-3/hbk; 978-981-10-3758-0/ebook). Industrial and Applied Mathematics, 193-206 (2017).
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Characterizations of the Hardy space \(H^1(\mathbb R)\) and BMO\((\mathbb R)\). (English) Zbl 1391.42022

Cwikel, Michael (ed.) et al., Functional analysis, harmonic analysis, and image processing: a collection of papers in honor of Björn Jawerth. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-2836-5/pbk; 978-1-4704-4166-1/ebook). Contemporary Mathematics 693, 309-320 (2017).
MSC:  42B30 42B35
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On Haar series of \(A\)-integrable functions. (English. Russian original) Zbl 1373.42031

J. Contemp. Math. Anal., Armen. Acad. Sci. 52, No. 3, 149-160 (2017); translation from Izv. Nats. Akad. Nauk Armen., Mat. 52, No. 3, 30-45 (2017).
MSC:  42C10 42C20
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On the constant and step in Jackson’s inequality for best approximations by trigonometric polynomials and by Haar polynomials. (English. Russian original) Zbl 1357.41009

Math. Notes 100, No. 3, 345-351 (2016); translation from Mat. Zametki 100, No. 3, 323-330 (2016).
MSC:  41A17 42A10
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