Abstract
Many product formulas are known classically for generalized hypergeometric functions over the complex numbers. In this paper, we establish some analogous formulas for generalized hypergeometric functions over finite fields.
Similar content being viewed by others
Data availability
Data sharing not applicable to this article as no datasets were generated or analysed during the current study.
References
Bailey, W.N.: Products of generalized hypergeometric functions. Proc. London Math. Soc. Ser. 2(28), 242–254 (1928)
Bailey, W.N.: Some theorems concerning products of hypergeometric series. Proc. London Math. Soc. Ser. 2(38), 377–384 (1935)
Bailey, W.N.: Generalized Hypergeometric Series. Cambridge Univ Press, Cambridge (1935)
Evans, R., Greene, J.: Clausen’s theorem and hypergeometric functions over finite fields. Finite Fields Appl. 15, 97–109 (2009)
Fuselier, J., Long, L., Ramakrishna, R., Swisher, H., Tu, F.-T.: Hypergeometric functions over finite fields, Mem. Amer. Math. Soc. (to appear)
Greene, J.: Hypergeometric functions over finite fields. Trans. Amer. Math. Soc. 301, 77–101 (1987)
Katz, N.M.: Exponential Sums and Differential Equations, Annals of Math. Studies 124, Princeton, 1990
Koblitz, N.: The number of points on certain families of hypersurfaces over finite fields. Compositio Math. 48, 3–23 (1983)
McCarthy, D.: Transformations of well-poised hypergeometric functions over finite fields. Finite Fields Appl. 18, 1133–1147 (2012)
Otsubo, N.: Hypergeometric functions over finite fields, ar**v:2108.06754
Senoue, T.: Product formulas for hypergeometric functions over finite fields (in Japanese), Master’s Thesis, Chiba University, March 2022
Tripathi, M., Barman, R.: A finite field analogue of the Appell series \(F_4\). Res. Number Theory 4, 35 (2018)
Tripathi, M., Barman, R.: Certain product formulas and values of Gaussian hypergeometric series. Res. Number Theory 6, 26 (2020)
Acknowledgements
This paper is largely based on the second author’s master’s thesis [11]. We would like to thank Ryojun Ito, Akio Nakagawa and Yusuke Nemoto for helpful discussions. The first author is supported by JSPS Grant-in-Aid for Scientific Research: 18K03234.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Otsubo, N., Senoue, T. Product formulas for hypergeometric functions over finite fields. Res. number theory 8, 80 (2022). https://doi.org/10.1007/s40993-022-00348-3
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s40993-022-00348-3