Abstract
This article has a twofold purpose. First, by recent works of Kaletha and Loke–Ma, we give an explicit description of the local theta correspondence between regular supercuspidal representations in the equal rank symplectic-orthogonal case. Second, based on this description, we show that the local theta correspondence preserves distinction with respect to unramified Galois involutions.
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Atobe, H., Gan, W.T.: Local theta correspondence of tempered representations and Langlands parameters. Invent. Math. 210(2), 341–415 (2015)
Aubert, A.-M., Michel, J., Rouquier, R.: Correspondance de Howe pour les groupes réductifs sur les corps finis. Duke Math. J. 83(2), 353–397 (1996)
DeBacker, S., Reeder, M.: Depth-zero supercuspidal L-packets and their stability. Ann. Math. (2) 169(3), 795–901 (2009)
DeBacker, S., Reeder, M.: On some generic very cuspidal representations. Compos. Math. 146(4), 1029–1055 (2010)
Gan, W.T., Ichino, A.: Formal degrees and local theta correspondence. Invent. Math. 195(3), 509–672 (2014)
Gan, W.T., Ichino, A.: The Gross–Prasad conjecture and local theta correspondence. Invent. Math. 206(3), 705–799 (2016)
Gan, W.T., Takeda, S.: A proof of the Howe duality conjecture. J. Am. Math. Soc. 29(2), 473–493 (2016)
Hakim, J.: Tame supercuspidal representations of \(\text{ GL }_n\) distinguished by orthogonal involutions. Represent. Theory 17, 120–175 (2013)
Hakim, J.: Constructing tame supercuspidal representations. Represent. Theory 22, 45–86 (2018)
Hakim, J.: Distinguished cuspidal representations over \(p\)-adic and finite fields. Preprint, arXiv:1703.08861
Hakim, J., Lansky, J.: Distinguished tame supercuspidal representations and odd orthogonal periods. Represent. Theory 16, 276–316 (2012)
Hakim, J., Murnaghan, F.: Tame supercuspidal representations of \(\text{ GL }(n)\) distinguished by a unitary group. Compos. Math. 133(2), 199–244 (2002)
Hakim, J., Murnaghan, F.: Two types of distinguished supercuspidal representations. Int. Math. Res. Not. IMRN 35, 1857–1889 (2002)
Hakim, J., Murnaghan, F.: Distinguished tame supercuspidal representations. Int. Math. Res. Pap. IMRP (2) (2008) (Art. ID rpn005)
Howe, R.: Tamely ramified supercuspidal representations of \(\text{ GL }_n\). Pac. J. Math. 73(2), 437–460 (1977)
Kaletha, T.: Supercuspidal \(L\)-packets via isocrystals. Am. J. Math. 136(1), 203–239 (2014)
Kaletha, T.: Epipelagic \(L\)-packets and rectifying characters. Invent. Math. 202(1), 1–89 (2015)
Kaletha, T.: Rigid inner forms of real and p-adic groups. Ann. Math. (2) 184(2), 559–632 (2016)
Kaletha, T.: Regular supercuspidal representations. arXiv:1602.03144v2 (to appear in J. Am. Math. Soc)
Kim, J.-L.: Supercuspidal representations: an exhaustion theorem. J. Am. Math. Soc. 20(2), 273–320 (2007)
Kudla, S.: On the local theta correspondence. Invent. Math. 83, 229–255 (1986)
Li, J.-S., Sun, B., Tian, Y.: The multiplicity one conjecture for local theta correspondences. Invent. Math. 184(1), 117–124 (2011)
Li, W.-W.: Stable conjugacy and epipelagic L-packets for Brylinski–Deligne covers of \(\text{ Sp }(2n)\). Preprint, arXiv:1703.04365
Loke, H., Ma, J.: Local theta correspondences between epipelagic supercuspidal representations. Math. Z. 283(1–2), 169–196 (2016)
Loke, H., Ma, J.: Local theta correspondences between supercuspidal representations. Ann. Sci. Éc. Norm. Supér. (4) 51(4), 927–991 (2018)
Moy, A., Prasad, G.: Unrefined minimal \(K\)-types for \(p\)-adic groups. Invent. Math. 116(1–3), 393–408 (1994)
Pan, S.-Y.: Local theta correspondence of depth zero representations and theta dichotomy. J. Math. Soc. Jpn. 54(4), 793–845 (2002)
Prasad, D.: A ‘relative’ local Langlands correspondence. Preprint, arXiv:1512.04347 (2015)
Reeder, M.: Supercuspidal L-packets of positive depth and twisted Coxeter elements. J. Reine Angew. Math. 620, 1–33 (2008)
Reeder, M., Yu, J.-K.: Epipelagic representations and invariant theory. J. Am. Math. Soc. 27(2), 437–477 (2014)
Sakellaridis, Y., Venkatesh, A.: Periods and harmonic analysis on spherical varieties. Astérisque 396, viii+360 (2017)
Springer, T.A., Steinberg, R.: Conjugacy Classes, Seminar on Algebraic Groups and Related Finite Groups, Lecture Notes in Mathematics, vol. 131, pp. 167–266. Springer, Berlin (1970)
Srinivasan, B.: Weil representations of finite classical groups. Invent. Math. 51, 143–153 (1979)
Sun, B., Zhu, C.-B.: Conservation relations for local theta correspondence. J. Am. Math. Soc. 28(4), 939–983 (2015)
Waldspurger, J.-L.: Intégrales orbitales nilpotentes et endoscopie pour les groupes classiques non ramifiés. Astérisque 269, vi+449 (2001)
Yu, J.-K.: Construction of tame supercuspidal representations. J. Am. Math. Soc. 14(3), 579–622 (2001)
Zhang, C.: Distinction of regular depth-zero supercuspidal L-packets. Int. Math. Res. Not. IMRN 15, 4579–4601 (2018)
Zhang, C.: Distinguished regular supercuspidal representations. Preprint, arXiv:1702.04897 (2017)
Acknowledgements
This work was partially supported by NSFC 11501033, Fundamental Research Funds for the Central Universities No. 14380018, and Zheng Gang Scholars Program. The author would like to thank Jia-Jun Ma for kindly answering several questions related to his paper [25] with Hung Yean Loke, and thank Wen-Wei Li for helpful comments on a preliminary version of this article. He also thanks the anonymous referee for the careful reading and helpful suggestions.
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Zhang, C. Theta lifts and distinction for regular supercuspidal representations. Math. Z. 295, 1279–1293 (2020). https://doi.org/10.1007/s00209-019-02391-w
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DOI: https://doi.org/10.1007/s00209-019-02391-w