Skip to main content
Log in

On the (C, α)-means with respect to the Walsh system

O (C, α)-средних для рядов по системе Уолша

  • Published:
Analysis Mathematica Aims and scope Submit manuscript

Abstract

In our main result we prove strong convergence theorems for Cesàro means (C, α) on the Hardy spaces H 1/(1+α), where 0 < α < 1.

абстрактный

Основной результат работы состоит в доказательстве теорем сильной сходимости для последовательностей (C, α)-средних Чезаро для рядов по системе Уолша в пространстранствах Харди H 1/(1+α, где 0 < α < 1.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. I. Blahota, G. Gát, and U. Goginava, Maximal operators of Fejér means of Vilenkin-Fourier series, J. Inequal. Pure Appl. Math., 7(2006), no. 4, Article 149.

    Google Scholar 

  2. N. J. Fine, On the Walsh function, Trans. Amer. Math. Soc., 65(1949), 372–414.

    Article  MATH  MathSciNet  Google Scholar 

  3. N. J. Fujii, A maximal inequality for H 1-functions on a generalized Walsh-Paley group, Proc. Amer. Math. Soc., 77(1979), no. 1, 111–116.

    MATH  MathSciNet  Google Scholar 

  4. G. Gát, Cesàro means of integrable functions with respect to unbounded Vilenkin systems, J. Approx. Theory, 124(2003), no. 1, 25–43.

    Article  MATH  MathSciNet  Google Scholar 

  5. G. Gát, Investigations of certain operators with respect to the Vilenkin system, Acta Math. Hungar., 61(1993), 131–149.

    Article  MATH  MathSciNet  Google Scholar 

  6. G. Gát and U. Goginava, A weak type inequality for the maximal operator of (C, α)-means of Fourier series with respect to the Walsh-Kaczmarz system, Acta Math. Hungar., 125(2009), no. 1–2, 65–83.

    Article  MATH  MathSciNet  Google Scholar 

  7. U. Goginava, Maximal operators of Fejér means of double Walsh-Fourier series, Acta Math. Hungar., 115(2007), no. 4, 333–340.

    Article  MATH  MathSciNet  Google Scholar 

  8. U. Goginava, The maximal operator of the (C, α) means of the Walsh-Fourier series, Ann. Univ. Sci. Budapest. Sect. Comput., 26(2006), 127–135.

    MATH  MathSciNet  Google Scholar 

  9. U. Goginava, On the approximation properties of Cesàro means of negative order of Walsh-Fourier series, J. Approx. Theory, 115(2002), no. 1, 9–20.

    Article  MATH  MathSciNet  Google Scholar 

  10. K. Nagy, Approximation by Cesàro means of negative order of Walsh-Kaczmarz-Fourier series, East J. Approx., 16(2010), no. 3, 297–311.

    MATH  MathSciNet  Google Scholar 

  11. J. Pál and P. Simon, On a generalization of the concept of derivative, Acta Math. Acad. Sci. Hungar., 29(1977), no. 1–2, 155–164.

    Article  MATH  MathSciNet  Google Scholar 

  12. F. Schipp, Certain rearrangements of series in the Walsh system, Mat. Zametki, 18(1975), no. 2, 193–201 (in Russian).

    MATH  MathSciNet  Google Scholar 

  13. F. Schipp, W. R. Wade, P. Simon, and J. Pál, Walsh series, An introduction to dyadic harmonic analysis, Akadémiai Kiadó, Adam Hilger (Budapest-Bristol-New York, 1990).

    MATH  Google Scholar 

  14. P. Simon, Strong convergence theorem for Vilenkin-Fourier series, J. Math. Anal. Appl., 245(2000), no. 1, 52–68.

    Article  MATH  MathSciNet  Google Scholar 

  15. P. Simon, Cesàro summability with respect to two-parameter Walsh systems, Monatsh. Math., 131(2000), no. 4, 321–334.

    Article  MathSciNet  Google Scholar 

  16. P. Simon, Investigations with respect to the Vilenkin system, Ann. Univ. Sci. Budapest. Eötvös Sect. Math., 27(1984), 87–101.

    MATH  Google Scholar 

  17. P. Simon, Strong convergence of certain means with respect to the Walsh-Fourier series, Acta Math. Hungar., 49(1987), no. 3–4, 425–431.

    Article  MATH  MathSciNet  Google Scholar 

  18. P. Simon and F. Weisz, Weak inequalities for Cesàro and Riesz summability of Walsh-Fourier series, J. Approx. Theory, 151(2008), no. 1, 1–19.

    Article  MATH  MathSciNet  Google Scholar 

  19. B. Smith, A strong convergence theorem for H 1(T), in Banach spaces, harmonic analysis, and probability theory, (Storrs, Conn., 1980/1981), Lecture Notes in Math. 995, Springer (Berlin-New York, 1983), 169–173.

    Chapter  Google Scholar 

  20. G. Tephnadze, Fejér means of Vilenkin-Fourier series, Studia Sci. Math. Hungar., 49(2012), no. 1, 79–90.

    MATH  MathSciNet  Google Scholar 

  21. G. Tephnadze, On the maximal operators of Vilenkin-Fejér means, Turkish J. Math., 37(2013), no. 2, 308–318.

    MATH  MathSciNet  Google Scholar 

  22. G. Tephnadze, On the maximal operators of Vilenkin-Fejér means on Hardy spaces, Math. Inequal. Appl., 16(2013), no. 1, 301–312.

    MATH  MathSciNet  Google Scholar 

  23. G. Tephnadze, A note on the Fourier coefficients and partial sums of Vilenkin-Fourier series, Acta Math. Acad. Paedagog. Nyházi., (N.S.) 28(2012), no. 2, 167–176.

    MATH  MathSciNet  Google Scholar 

  24. G. Tephnadze, Strong convergence theorem of one dimensional Walsh-Fejér means, Acta Math. Hungar., DOI 10.1007/s10474-013-0361-5 (in press).

  25. N. Ya. Vilenkin, On a class of complete orthonormal systems, Amer. Math. Soc. Transl., 28(2)(1963) 1–35.

    MATH  MathSciNet  Google Scholar 

  26. F. Weisz, Martingale Hardy spaces and their applications in Fourier analysis, Lecture Notes in Math., 1568, Springer (Berlin, 1994).

    MATH  Google Scholar 

  27. F. Weisz, Cesàro summability of one- and two-dimensional Walsh-Fourier series, Analysis Math., 22(1996), 229–242.

    Article  MATH  MathSciNet  Google Scholar 

  28. F. Weisz, Weak type inequalities for the Walsh and bounded Ciesielski systems, Analysis Math., 30(2004), 147–160.

    Article  MathSciNet  Google Scholar 

  29. F. Weisz, Hardy spaces and Cesàro means of two-dimensional Fourier series, Approximation theory and function series, (Budapest, 1995), János Bolyai Math. Soc. (Budapest, 1996), 353–367.

    Google Scholar 

  30. F. Weisz, (C, α) summability of Walsh-Fourier series, Analysis Math., 27(2001), 141–156.

    Article  MATH  MathSciNet  Google Scholar 

  31. F. Weisz, Strong convergence theorems for two-parameter Walsh-Fourier and trigonometric-Fourier series, Studia Math., 117(1996), 173–194.

    MATH  MathSciNet  Google Scholar 

  32. F. Weisz, Summability of multi-dimensional Fourier series and Hardy spaces, Math. and its Appl., 541, Kluwer Academic Publishers (Dordrecht, 2002).

    Book  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to I. Blahota.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Blahota, I., Tephnadze, G. On the (C, α)-means with respect to the Walsh system. Anal Math 40, 161–174 (2014). https://doi.org/10.1007/s10476-014-0301-9

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10476-014-0301-9

Keywords

Navigation