Skip to main content
Log in

On the zeros of approximations of the Ramanujan Ξ-function

  • Published:
The Ramanujan Journal Aims and scope Submit manuscript

Abstract

The analogue of the Riemann hypothesis for the Ramanujan zeta function states that all zeros of the Ramanujan Ξ-function have real zeros only. We study the zeros of approximations of the Ramanujan Ξ-function.

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. de Bruijn, N.G.: The roots of trigonometric integrals. Duke Math. J. 17, 197–226 (1950)

    Article  MATH  MathSciNet  Google Scholar 

  2. Conrey, J.B., Ghosh, A.: Simple zeros of the Ramanujan τ-Dirichlet series. Invent. Math. 94(2), 403–419 (1988)

    Article  MATH  MathSciNet  Google Scholar 

  3. Erdélyi, A., et al.: Higher Transcendental Functions, vol. 1. McGraw-Hill, New York (1953)

    Google Scholar 

  4. Ki, H.: On a theorem of Levinson. J. Number Theory 107, 287–297 (2004)

    Article  MATH  MathSciNet  Google Scholar 

  5. Ki, H.: All but finitely many nontrivial zeros of the approximations of the Epstein zeta function are simple and on the critical line. Proc. Lond. Math. Soc. 90, 321–344 (2005)

    Article  MATH  MathSciNet  Google Scholar 

  6. Ki, H.: On the distribution of zeros of linear combinations of K-Bessel functions and the Riemann zeta function. Preprint

  7. Ki, H.: Zeros of the constant term in the Chowla-Selberg formula. Acta Arith. 124, 197–204 (2006)

    Article  MATH  MathSciNet  Google Scholar 

  8. Levin, B.J.: Distribution of Zeros of Entire Functions. Transl. Math. Monographs, vol. 5. Am. Math. Soc., Providence (1964)

    MATH  Google Scholar 

  9. Levinson, N.: On theorems of Berlowitz and Berndt. J. Number Theory 3, 502–504 (1971)

    Article  MATH  MathSciNet  Google Scholar 

  10. Moreno, C.J.: The zeros of exponential polynomials (I). Compos. Math. 26, 69–78 (1973)

    MATH  MathSciNet  Google Scholar 

  11. Pólya, G.: Über trigonometrische Integrale mit nur reellen Nullstellen. J. Reine Angew. Math. 158, 6–18 (1927)

    MATH  Google Scholar 

  12. Strömberg, F.: On the zeros of linear combinations of K-Bessel functions. Uppsala universitet licentiat thesis (2000-06-02)

  13. Titchmarsh, E.C.: The Theory of the Riemann Zeta-function, 2d edn. Oxford University Press, Oxford (1986), revised by D.R. Heath-Brown

    MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Haseo Ki.

Additional information

This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2006-312-C00021).

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ki, H. On the zeros of approximations of the Ramanujan Ξ-function. Ramanujan J 17, 123–143 (2008). https://doi.org/10.1007/s11139-007-9046-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11139-007-9046-4

Keywords

Mathematics Subject Classification (2000)

Navigation