Research Article

The Bigamma function and some of its related inequalities

Volume: 54 Number: 5 October 29, 2025
EN

The Bigamma function and some of its related inequalities

Abstract

In this article, we define a special function called the Bigamma function. It provides a generalization of Euler's gamma function. Several algebraic properties of this new function are studied. In particular, results linking this new function to the standard Beta function have been provided. We have also established inequalities, which allow to approximate this new function.

Keywords

References

  1. [1] G. E. Andrews, R. Askey, and R. Roy, Special Functions, Cambridge University Press, 1999.
  2. [2] R. Beals and R. Wong, Special Functions and Orthogonal Polynomials, Cambridge University Press, 2016.
  3. [3] M. A. Chaudhry and S. M. Zubair, Generalized incomplete gamma functions with applications, J. Comput. Appl. Math. 55, 99-124, 1994.
  4. [4] S. S. Dragomir, R. P. Agarwal, and N. S. Barnett, Inequalities for beta and gamma functions via some classical and new integral inequalities, J. Inequal. Appl. 5, 103-165, 2000.
  5. [5] A. F. Nikiforov and V. B. Uvarov, Special Functions of Mathematical Physics, A Unified Introduction with Applications, Birkhäuser Boston, MA, 1988.
  6. [6] F. W. J. Olver, Asymptotics and Special Functions, Academic Press Elsevier, 1974
  7. [7] E. Özergin, M. A. Özarslan, and A. Altin, Extensions of gamma, beta and hypergeometric functions, J. Comput. Appl. Math. 235 (16), 4601-4610, 2011.
  8. [8] M. Raïssouli and M. Chergui, Some inequalities for an extended beta function, Int. J. Appl. Math. 34 (4), 721-743, 2021.

Details

Primary Language

English

Subjects

Mathematical Methods and Special Functions

Journal Section

Research Article

Early Pub Date

April 11, 2025

Publication Date

October 29, 2025

Submission Date

May 26, 2024

Acceptance Date

January 24, 2025

Published in Issue

Year 2025 Volume: 54 Number: 5

APA
Raıssoulı, M., & Mohamed, C. (2025). The Bigamma function and some of its related inequalities. Hacettepe Journal of Mathematics and Statistics, 54(5), 1774-1782. https://doi.org/10.15672/hujms.1490373
AMA
1.Raıssoulı M, Mohamed C. The Bigamma function and some of its related inequalities. Hacettepe Journal of Mathematics and Statistics. 2025;54(5):1774-1782. doi:10.15672/hujms.1490373
Chicago
Raıssoulı, Mustapha, and Chergui Mohamed. 2025. “The Bigamma Function and Some of Its Related Inequalities”. Hacettepe Journal of Mathematics and Statistics 54 (5): 1774-82. https://doi.org/10.15672/hujms.1490373.
EndNote
Raıssoulı M, Mohamed C (October 1, 2025) The Bigamma function and some of its related inequalities. Hacettepe Journal of Mathematics and Statistics 54 5 1774–1782.
IEEE
[1]M. Raıssoulı and C. Mohamed, “The Bigamma function and some of its related inequalities”, Hacettepe Journal of Mathematics and Statistics, vol. 54, no. 5, pp. 1774–1782, Oct. 2025, doi: 10.15672/hujms.1490373.
ISNAD
Raıssoulı, Mustapha - Mohamed, Chergui. “The Bigamma Function and Some of Its Related Inequalities”. Hacettepe Journal of Mathematics and Statistics 54/5 (October 1, 2025): 1774-1782. https://doi.org/10.15672/hujms.1490373.
JAMA
1.Raıssoulı M, Mohamed C. The Bigamma function and some of its related inequalities. Hacettepe Journal of Mathematics and Statistics. 2025;54:1774–1782.
MLA
Raıssoulı, Mustapha, and Chergui Mohamed. “The Bigamma Function and Some of Its Related Inequalities”. Hacettepe Journal of Mathematics and Statistics, vol. 54, no. 5, Oct. 2025, pp. 1774-82, doi:10.15672/hujms.1490373.
Vancouver
1.Mustapha Raıssoulı, Chergui Mohamed. The Bigamma function and some of its related inequalities. Hacettepe Journal of Mathematics and Statistics. 2025 Oct. 1;54(5):1774-82. doi:10.15672/hujms.1490373