Skip to main content
Log in

On the Poincaré expansion of the Hurwitz zeta function

  • Published:
Lithuanian Mathematical Journal Aims and scope Submit manuscript

Abstract

In this paper, we extend the result of Paris [R.B. Paris, The Stokes phenomenon associated with the Hurwitz zeta function ζ(s, a), Proc. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci., 461(2053):297–304, 2005] on the exponentially improved expansion of the Hurwitz zeta function ζ(s, z), the expansion of which can be reduced to the large-z Poincaré asymptotics of ζ(s, z). Furthermore, we deduce some new series and integral representations of the Hurwitz zeta function ζ(s, z).

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. H. Cohen, Number Theory, Vol. II: Analytic and Modern Tools, Springer, New York, 2007.

  2. R.B. Dingle, Asymptotic Expansions: Their Derivation and Interpretation, Academic Press, New York, 1973.

    MATH  Google Scholar 

  3. A. Dixit and R. Kumar, On Hurwitz zeta function and Lommel functions, Int. J. Number Theory, 7(2):393–404, 2021.

    Article  MathSciNet  Google Scholar 

  4. A. Erdélyi, W. Magnus, F. Oberhettinger, and F.G. Tricomi, Higher Transcendental Functions, Vols. I, II, McGraw-Hill, New York, 1955.

  5. B.X. Fejzullahu, Neumann series and Lommel functions of two variables, Integral Transforms Spec. Funct., 27(6): 443–453, 2016.

    Article  MathSciNet  Google Scholar 

  6. B.X. Fejzullahu, Partial fraction expansion of the hypergeometric functions, Integral Transforms Spec. Funct., 30(3): 240–253, 2019.

    Article  MathSciNet  Google Scholar 

  7. F. Johansson, Rigorous high-precision computation of the Hurwitz zeta function and its derivatives, Numer. Algorithms, 69(2):253–270, 2015.

    Article  MathSciNet  Google Scholar 

  8. S. Kanemitsu, H. Kumagai, H.M. Srivastava, and M. Yoshimoto, Some integral and asymptotic formulas associated with the Hurwitz zeta function, Appl. Math. Comput., 154(3):641–664, 2004.

    MathSciNet  MATH  Google Scholar 

  9. M. Katsurada, Power series and asymptotic series associated with the Lerch zeta-function, Proc. Japan Acad., Ser. A, 74(10):167–170, 1998.

  10. V. Kowalenko and T. Taucher, A numerical study of a new asymptotic expansion for the incomplete gamma function, Report UM-P-97/06, University of Melbourne, Australia, 1997.

  11. A. Laurinčikas and R. Garunkštis, The Lerch zeta-function, Kluwer Academic, Dordrecht, 2002.

    MATH  Google Scholar 

  12. J.B. Lewis, Spaces of holomorphic functions equivalent to the even Maass cusp forms, Invent. Math., 127(2):271–306, 1997.

    Article  MathSciNet  Google Scholar 

  13. G. Nemes, Error bounds for the asymptotic expansion of the Hurwitz zeta function, Proc. R. Soc. Lond., A, Math. Phys. Eng. Sci., 473(2203):20170363, 2017.

  14. F.W.J. Olver, D.W. Lozier, R.F. Boisvert, and C.W. Clark (Eds.), Nist Handbook of Mathematical Functions, Cambridge Univ. Press, Cambridge, 2010.

    MATH  Google Scholar 

  15. R.B. Paris, The Stokes phenomenon associated with the Hurwitz zeta function ζ(s, a), Proc. R. Soc. Lond., A, Math. Phys. Eng. Sci., 461(2053):297–304, 2005.

  16. R.B. Paris and D. Kaminski, Asymptotics and Mellin–Barnes Integrals, Cambridge Univ. Press, Cambridge, 2001.

    Book  Google Scholar 

  17. A.P. Prudnikov, Yu.A. Brychkov, and O.I. Marichev, Integrals and Series, Vol. 3, Gordon and Breach, New York, 1990.

  18. A.P. Prudnikov, Yu.A. Brychkov, and O.I. Marichev, Integrals and Series, Vol. 2, Gordon and Breach, New York, 1992.

  19. K. Ueno andM. Nishizawa, Quantum groups and zeta-functions, in J. Lukierski, Z. Popowicz, and J. Sobczyk (Eds.), 30th Karpacz Winter School of Theoretical Physics. Quantum Groups: Formalism and Applications, Vol. 2, PWN, Warsaw, 1995, pp. 115–126.

  20. G.N. Watson, A treatise on the Theory of Bessel Functions, Cambridge Univ. Press, Cambridge, 1944.

  21. E.T. Whittaker and G.N. Watson, A Course of Modern Analysis, Cambridge Univ. Press, Cambridge, 1996.

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Bujar Fejzullahu.

Additional information

Dedicated to the memory of his teacher and father Xhemail Fejzullahu (1945–2021)

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Fejzullahu, B. On the Poincaré expansion of the Hurwitz zeta function. Lith Math J 61, 460–470 (2021). https://doi.org/10.1007/s10986-021-09527-8

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10986-021-09527-8

MSC

Keywords

Navigation