DOI QR코드

DOI QR Code

Generalizations of Ramanujan's Integral Associated with Infinite Fourier Cosine Transforms in Terms of Hypergeometric Functions and its Applications

  • Qureshi, Mohammad Idris (Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia(A Central University)) ;
  • Dar, Showkat Ahmad (Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia(A Central University))
  • Received : 2018.09.22
  • Accepted : 2020.07.28
  • Published : 2020.12.31

Abstract

In this paper, we obtain an analytical solution for an unsolved definite integral RC (m, n) from a 1915 paper of Srinivasa Ramanujan. We obtain our solution using the hypergeometric approach and an infinite series decomposition identity. Also, we give some generalizations of Ramanujan's integral RC (m, n) defined in terms of the ordinary hypergeometric function 2F3 with suitable convergence conditions. Moreover as applications of our result we obtain nine new infinite summation formulas associated with the hypergeometric functions 0F1, 1F2 and 2F3.

Keywords

Acknowledgement

The authors are thankful to the reviewers for their valuable comments to improve the quality of this research paper and academy of the University Grant Commission for financial support during the research period of the second author.

References

  1. A. Erdelyi, W. Magnus, F. Oberhettinger and F. G. Tricomi, Higher transcendental functions, Vol. I, McGraw-Hill, New york, Toronto and London, 1953.
  2. A. Erdelyi, W. Magnus, F. Oberhettinger and F. G. Tricomi, Tables of integral transforms, Vol. I, McGraw-Hill, New york, Toronto and London, 1954.
  3. F. Oberhettinger, Tables of Mellin transforms, Springer-Verlag, Berlin, Heidelberg, New York, 1974.
  4. F. Oberhettinger, Tables of Fourier transforms and Fourier transforms of distributions, Springer Verlag, Berlin, 1990.
  5. M. I. Qureshi and S. A. Dar, Evaluation of some definite integrals of Ramanujan, using hypergeometric approach, Palest. J. Math., 7(2)(2018), 620-623.
  6. M. I. Qureshi and S. A. Dar, Generalizations of Ramanujan's integral associated with infinite Fourier sine transforms in terms of hypergeometric functions and its applications, arXiv:submit/2254975 [math.CA] 8 May 2018.
  7. S. Ramanujan, Some definite integrals connected with Gauss's sums, Mess. Math., 44(1915), 75-85.
  8. H. M. Srivastava, A note on certain identities involving generalized hypergeometric series, Nederl. Akad. Wetensch. Indag. Math., 41(1979), 191-201. https://doi.org/10.1016/1385-7258(79)90024-6
  9. H. M. Srivastava and H. L. Manocha, A treatise on generating functions, Halsted Press (Ellis Horwood Limited, Chichester, U.K.), John Wiley and Sons, New york, Chichester, Brisbane and Toronto, 1984.
  10. H. M. Srivastava, M. I. Qureshi, A. Singh and A. Arora, A family of hypergeometric integrals associated with Ramanujan's integral formula, Adv. Stud. Contemp. Math. (Kyungshang), 18(2)(2009), 113-125.
  11. E. M. Wright, The asymptotic expansion of the generalized hypergeometric function, J. London Math. Soc., 10(1935), 286-293. https://doi.org/10.1112/jlms/s1-10.40.286
  12. E. M. Wright, The asymptotic expansion of the generalized hypergeometric function, Proc. London Math. Soc. (2), 46(1940), 389-408. https://doi.org/10.1112/plms/s2-46.1.389