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On a boundary properties of functions from a class Hp(p ≥ 1)

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In this paper, the structural properties of a function are characterized by moduli of continuity. The classical Hardy–Littlewood theorem describes a relation between the smoothness of the analytic function boundary values at the boundary of its analyticity and the growth rate of the modulus of its higher-order derivatives. An analogue of the Hardy–Littlewood theorem has been obtained for functions from the class Hp and higher-order moduli of continuity.

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References

  1. A. G. Aksoy and L. Maligranda, “Lipschitz–Orlicz Spaces and the Laplace Equation,” Mathematische Nachrichten, 178(1), 81–101 (1996).

    Article  MathSciNet  Google Scholar 

  2. G. M. Goluzin, Geometric Theory of Functions of a Complex Variable [in Russian]. Nauka, M. (1966).

  3. V. I. Gorbajchuk, “On inverse theorems of approximation by harmonic functions,” Ukr. Math. J., 38(3), 309–314 (1986).

    MathSciNet  Google Scholar 

  4. V. Gutlyanskiĭ, V. Ryazanov, E. Yakubov, and A. Yefimushkin, “On the Hilbert boundary-value problem for Beltrami equations with singularities,” J. Math. Sci., 254(3), 357–374 (2021).

    Article  MathSciNet  Google Scholar 

  5. M. Z. Dveirin, “Hardy–Littlewood theorem in domains with quasiconformal boundary and its applications to harmonic functions,” Siberian Mathematical Journal, 27, 361–366 (1987).

    Article  MathSciNet  Google Scholar 

  6. V. K. Dzyadyk, Introduction to the theory of uniform approximation of functions by polynomials [in Russian]. Nauka, Moscow (1977).

  7. I. V. Kal’chuk, Yu. I. Kharkevych, and K. V. Pozharska, “Asymptotics of approximation of functions by conjugate Poisson integrals,” Carpathian Math. Publ., 12(1), 138–147 (2020).

    Article  MathSciNet  Google Scholar 

  8. Yu. I. Kharkevych, “On Approximation of the quasi-smooth functions by their Poisson type integrals,” Journal of Automation and Information Sciences, 49(10), 74–81 (2017).

    Article  Google Scholar 

  9. Yu. I. Kharkevych, “Asymptotic expansions of upper bounds of deviations of functions of class Wr from their generalized Poisson integrals,” Journal of Automation and Information Sciences, 50(8), 38–39 (2018).

    Article  Google Scholar 

  10. R. M. Kovalchuk, “Some properties of the integral modulus of smoothness of a boundary function for the class Hp(p ≥ 1),” Function theory, functional analysis and their applications, 9, 14–20 (1969).

    Google Scholar 

  11. S. G. Krejn, Yu. I. Petunin, and E. M. Semenov, Interpolation of Linear Operators [in Russian]. Nauka, M. (1977).

  12. V. I. Ryazanov, “Stieltjes integrals in the theory of harmonic functions,” J. Math. Sci., 243(6), 922–933 (2019).

    Article  MathSciNet  Google Scholar 

  13. V. I. Ryazanov, “On the theory of the boundary behavior of conjugate harmonic functions,” Complex Anal. Oper. Theory, 13, 2899–2915 (2019).

    Article  MathSciNet  Google Scholar 

  14. P. M. Tamrazov, Smoothness and Polynomial Approximation [in Russian]. Naukova Dumka, K. (1975).

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Correspondence to Ulyna Hrabova.

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Translated from Ukrains’kiĭ Matematychnyĭ Visnyk, Vol. 19, No. 2, pp. 167–175, April–June, 2022.

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Hrabova, U., Tovkach, R. On a boundary properties of functions from a class Hp(p ≥ 1). J Math Sci 264, 389–395 (2022). https://doi.org/10.1007/s10958-022-06006-4

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  • DOI: https://doi.org/10.1007/s10958-022-06006-4

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