On approximation of double Fourier series and its conjugate series for functions in mixed Lebesgue space Lp→,p ∈ [1,∞]2

Authors

  • Yogeshkumar K. Patel Department of Mathematics, Government Science College, Pardi, Gujarat, India 396125
  • Rajendra G. Vyas Department of Mathematics, Faculty of Science, The Maharaja Sayajirao University of Baroda Vadodara, Gujarat, India 390002

DOI:

https://doi.org/10.22199/issn.0717-6279-5418

Keywords:

summation methods, Fourier series, order of convergence

Abstract

In this paper, we study the approximation of double Fourier series and its conjugate series for functions in mixed Lebesgue space Lp, p ∈ [1,∞]2 using double Karamata Kλ,μ means. 

References

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S. Lal and A. Mishra, “Approximation of function f(x, y) belonging to generalized lipschitz class by (N, Pm, Qn) method of the doublé Fourier series”, Bulletin of Mathematical Analysis and Applications, vol. 7, pp. 28-36, 2015.

B. Landon, H. Carley and R. N. Mohapatra, “Approximation by the (Kλ) means of Fourier series and conjugate series of functions in Hα,p”, Applicable Analysis and Discrete Mathematics, vol. 14, pp. 800-818, 2020.

H.K Nigam and Md Hadish, “Approximation of a function in Holder class using double Karamata (Kλμ) method”, European journal of pure and applied mathematics, vol. 13, pp. 567-578, 2020. https://doi.org/10.29020/nybg.ejpam.v13i3.3663

P. Sadangi, Degree of convergence of function in the Holder metric, Ph. D. Thesis, Utkal University, 2006.

V. Vuckovic, “The summability of Fourier series by Karamata methods”, Mathematische Zeitschrift, vol. 89, pp. 192-195, 1965.

R.G Vyas, “Convolution product of functions of generalized Wiener class”, The Mathematics Student, vol. 90, 2021. https://doi.org/10.1515/gmj-2015-0011

Published

2023-03-27

How to Cite

[1]
Yogeshkumar K. Patel and Rajendra G. Vyas, “On approximation of double Fourier series and its conjugate series for functions in mixed Lebesgue space Lp→,p ∈ [1,∞]2”, Proyecciones (Antofagasta, On line), vol. 42, no. 2, pp. 433-444, Mar. 2023.

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Artículos