Abstract
We prove a converse theorem for split even special orthogonal groups over finite fields. This is the only case left on converse theorems of classical groups and the difficulty is the existence of the outer automorphism. In this paper, we develop new ideas and overcome this difficulty.
Similar content being viewed by others
References
Aizenbud, A., Gourevitch, D., Rallis, S., et al.: Multiplicity one theorems. Ann. of Math. (2), 172, 1407–1434 (2010)
Arthur, J.: The endoscopic classification of representations orthogonal and symplectic groups, American Mathematical Society, Providence, RI, 2013
Bernstein, I., Zelevinskii, A.: Representations of the group GL(n,F), where F is a local non-Archimedean field. Uspehi Mat. Nauk, 31, 5–70 (1976)
Chai, J.: Bessel functions and local converse conjecture of Jacquet. J. Eur. Math. Soc. (JEMS), 21(6), 1703–1728 (2019)
Gan, W., Gross, B., Prasad, D.: Symplectic local root numbers, central critical L values, and restriction problems in the representation theory of classical groups. Astérisque, 346, 1–109 (2012)
Gan, W., Gross, B., Prasad, D.: Restrictions of representations of classical groups: examples. Astérisque, 346, 111–170 (2012)
Gelbart, S., Piatetski-Shapiro, I., Rallis, S.: Explicit Constructions of Automorphic L-functions, Springer-Verlag, Berlin, 1987
Hazeltine, A., Liu, B.: On the local converse theorem for split SO2n, preprint, 2023 ar**v:2301.13847
Jacquet, H., Liu, B.: On the Local Converse Theorem for p-adic GLn. Amer. J. Math., 140, 1399–1422 (2018)
Jacquet, H., Piatetski-Shapiro, I., Shalika, J.: Rankin-Selberg convolutions. Amer. J. Math., 105, 367–464 (1983)
Jantzen, D., Liu, B.: The generic dual of p-adic split SO2n and local Langlands parameters. Israel J. Math., 204, 199–260 (2014)
Jiang, D., Soudry, D.: The local converse theorem for SO(2n + 1) and applications. Ann. of Math. (2), 157(3), 743–806 (2003)
Jiang, D., Soudry, D.: On local descent from GL(n) to classical groups. Amer. J. Math, 134(3), 767–772 (2012) (appendix to a paper by D. Prasad and D. Ramakrishnan)
Kaplan, E.: Multiplicativity of the gamma factors of Rankin-Selberg integrals for SO2l ×GLn. Manuscripta Math., 142, 307–346 (2013)
Kaplan, E.: Complementary results on the Rankin-Selberg gamma factors of classical groups. J. Number Theory, 146, 390–447 (2015)
Liu, B., Zhang, Q.: On a converse theorem for G2 over finite fields. Math. Ann., 383, 1217–1283 (2022)
Liu, B., Zhang, Q.: Gamma factors and converse theorems for classical groups over finite fields. J. Number Theory, 234, 285–332 (2022)
Mœglin, C., Waldspurger, J.: La conjecture locale de Gross–Prasad pour les groupes speciaux orthogonaux: le cas general. Astérisque, 347, 167–216 (2012)
Morimoto, K.: On the irreducibility of global descents for even unitary groups and its applications. Trans. Amer. Math. Soc., 370, 6245–6295 (2018)
Nien, C.: A proof of the finite field analogue of Jacquet’s conjecture. Amer. J. Math., 136, 653–674 (2014)
Roditty, E. A.: On Gamma factors and Bessel functions for representations of general linear groups over finite fields, Master Thesis, Tel Aviv University, 2010
Shahidi, F.: Fourier transforms of intertwining operators and Plancherel measures for GL(n). Amer. J. Math., 106(1), 67–111 (1984)
Zhang, Q.: A local converse theorem for Sp2r. Math. Ann., 372, 451–488 (2018)
Zhang, Q.: A local converse theorem for U2r+1. Trans. Amer. Math. Soc., 371, 5631–5654 (2019)
Acknowledgements
The authors would like to thank Professor Dihua Jiang and Professor Freydoon Shahidi for their interests and constant support. The authors also would like to thank Professor Qing Zhang for helpful communications.
Author information
Authors and Affiliations
Corresponding author
Additional information
The research of the first-named author is partially supported by the NSF Grants DMS-1848058. The research of the second-named author is partially supported by the NSF Grants DMS-1702218, DMS-1848058, and by start-up funds from the Department of Mathematics at Purdue University
Rights and permissions
About this article
Cite this article
Hazeltine, A., Liu, B.Y. A Converse Theorem for Split SO2l over Finite Fields. Acta. Math. Sin.-English Ser. 40, 731–771 (2024). https://doi.org/10.1007/s10114-023-2061-6
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10114-023-2061-6