Skip to main content
Log in

Generalized hypergeometric functions: product identities and weighted norm inequalities

  • Published:
The Ramanujan Journal Aims and scope Submit manuscript

Abstract

We describe a method of obtaining weighted norm inequalities for generalized hypergeometric functions. This method is based upon our recent convolution theorem and some classical hypergeometric identities. In particular, it is shown that some product identities involving the divergent hypergeometric series lead to the convergent hypergeometric inequalities. A number of the new weighted norm inequalities for the Gaussian hypergeometric function, confluent hypergeometric function, and other generalized hypergeometric functions are presented.

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. Abramowitz, M., Stegun, L.A. (eds.): Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. Dover, New York (1992) (reprint of the 1972 edition)

    Google Scholar 

  2. Agarwal, R.P., O’Regan, D.: Ordinary and Partial Differential Equations (With Special Functions, Fourier Series, and Boundary Value Problems). Universitext Springer, New York (2009)

    MATH  Google Scholar 

  3. Andrews, G.E., Askey, R., Roy, R.: Special Functions. Encyclopedia Math. Appl., vol. 71. Cambridge University Press, Cambridge (1999)

    MATH  Google Scholar 

  4. Bailey, W.N.: Products of generalized hypergeometric series. Proc. Lond. Math. Soc. 28(2), 242–254 (1928)

    Article  MATH  Google Scholar 

  5. Bailey, W.N.: Generalized Hypergeometric Series. Hafner, New York (1972)

    Google Scholar 

  6. Buschman, R.G., Srivastava, H.M.: Series identities and reducibility of Kampé de Fériet functions. Math. Proc. Camb. Philos. Soc. 91(3), 435–440 (1982)

    Article  MathSciNet  MATH  Google Scholar 

  7. Erdélyi, A., Magnus, W., Oberhettinger, F., Tricomi, F.G.: Tables of Integral Transforms. McGraw-Hill, New York (1954). Vols. I, II

    Google Scholar 

  8. Erdélyi, A., Magnus, W., Oberhettinger, F., Tricomi, F.G.: Higher Transcendental Functions. Krieger, Melbourne (1981). Vols. I, II

    Google Scholar 

  9. Gradsteyn, I.S., Ryzhik, I.M.: Table of Integrals, Series, and Products, 6th edn. Academic Press, San Diego (2000)

    Google Scholar 

  10. Grinshpan, A.Z.: General inequalities, consequences and applications. Adv. Appl. Math. 34, 71–100 (2005)

    Article  MathSciNet  MATH  Google Scholar 

  11. Grinshpan, A.Z.: Integral inequalities for some special functions. J. Math. Anal. Appl. 314, 724–735 (2006)

    Article  MathSciNet  MATH  Google Scholar 

  12. Grinshpan, A.Z.: Weighted norm inequalities for analytic functions. J. Math. Anal. Appl. 327, 1095–1104 (2007)

    Article  MathSciNet  MATH  Google Scholar 

  13. Grinshpan, A.Z.: Inequalities for formal power series and entire functions. J. Math. Anal. Appl. 338, 1418–1430 (2008)

    Article  MathSciNet  MATH  Google Scholar 

  14. Grinshpan, A.Z.: Weighted inequalities and negative binomials. Adv. Appl. Math. 45, 564–606 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  15. Grinshpan, A.Z.: Volterra convolution equations: solution-kernel connection. Integral Transforms Spec. Funct. 23, 263–275 (2012)

    Article  MathSciNet  MATH  Google Scholar 

  16. Grinshpan, A.Z.: Weighted norm inequalities for convolutions, differential operators, and generalized hypergeometric functions. Integral Equ. Oper. Theory 75, 165–185 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  17. Hardy, G.H.: A chapter from Ramanujan’s note-book. Proc. Camb. Philos. Soc. 21, 492–503 (1923)

    MATH  Google Scholar 

  18. Hardy, G.H., Littlewood, J.E., Pólya, G.: Inequalities. Cambridge University Press, Cambridge (1952)

    MATH  Google Scholar 

  19. Orr, W.McF.: Theorems relating to the product of two hypergeometric series. In: Trans. Camb. Phil. Soc. vol. 17, pp. 1–15 (1899)

    Google Scholar 

  20. Petkovšek, M., Wilf, H.S., Zeilberger, D.: A=B. AK Peters, Wellesley (1996) (with foreword by D.E. Knuth)

    Google Scholar 

  21. Preece, C.T.: The product of two generalized hypergeometric functions. Proc. Lond. Math. Soc. 22(2), 370–380 (1924)

    Article  MathSciNet  MATH  Google Scholar 

  22. Prudnikov, A.P., Brychkov, Yu.A., Marichev, O.I.: Integrals and Series. Gordon & Breach, Amsterdam (1990) (translated from the Russian by G.G. Gould). Vols. I, II, III

    MATH  Google Scholar 

  23. Slater, L.J.: Generalized Hypergeometric Functions. Cambridge University Press, Cambridge (1966)

    MATH  Google Scholar 

  24. Srivastava, H.M., Buschman, R.G.: Theory and Applications of Convolution Integral Equations. Mathematics and Applications, vol. 79. Kluwer Academic, Dordrecht (1992)

    Book  MATH  Google Scholar 

  25. Watson, G.N.: A Treatise on the Theory of Bessel Functions. Cambridge University Press, Cambridge (1966) (reprint of the 1944 edition)

    MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Arcadii Z. Grinshpan.

Additional information

Dedicated to Mourad Ismail and Dennis Stanton

Rights and permissions

Reprints and permissions

About this article

Cite this article

Grinshpan, A.Z. Generalized hypergeometric functions: product identities and weighted norm inequalities. Ramanujan J 31, 53–66 (2013). https://doi.org/10.1007/s11139-013-9487-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11139-013-9487-x

Keywords

Mathematics Subject Classification (2000)

Navigation