Lifting discrete series by Dirac cohomology
Journal of Lie Theory, Special issue dedicated to the memory of Joseph A. Wolf, Volume 36 (2026) no. 1, pp. 77-92

Dirac cohomology of a discrete series representation is an analogue of the highest weight vectors of a highest weight representation. We employ Dirac cohomology for the induction and character lifting of discrete series as well as determining the lifting of L-packets of discrete series.

Received:
Accepted:
Published online:
DOI: 10.5802/jolt.1420
Classification: 22E47, 22E46
Keywords: Dirac cohomology, discrete series, Dirac induction, L-packet, character lifting

Huang, Jing-Song  1

1 Mathematics Research Center, School of Science and Engineering, Chinese University of Hong Kong, Shenzhen, China
Huang, Jing-Song. Lifting discrete series by Dirac cohomology. Journal of Lie Theory, Special issue dedicated to the memory of Joseph A. Wolf, Volume 36 (2026) no. 1, pp. 77-92. doi: 10.5802/jolt.1420
@article{10_5802_jolt_1420,
     author = {Huang, Jing-Song},
     title = {Lifting discrete series by {Dirac} cohomology},
     journal = {Journal of Lie Theory},
     pages = {77--92},
     year = {2026},
     publisher = {XXXX},
     volume = {36},
     number = {1},
     doi = {10.5802/jolt.1420},
     language = {en},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.1420/}
}
TY  - JOUR
AU  - Huang, Jing-Song
TI  - Lifting discrete series by Dirac cohomology
JO  - Journal of Lie Theory
PY  - 2026
SP  - 77
EP  - 92
VL  - 36
IS  - 1
PB  - XXXX
UR  - https://jolt.centre-mersenne.org/articles/10.5802/jolt.1420/
DO  - 10.5802/jolt.1420
LA  - en
ID  - 10_5802_jolt_1420
ER  - 
%0 Journal Article
%A Huang, Jing-Song
%T Lifting discrete series by Dirac cohomology
%J Journal of Lie Theory
%D 2026
%P 77-92
%V 36
%N 1
%I XXXX
%U https://jolt.centre-mersenne.org/articles/10.5802/jolt.1420/
%R 10.5802/jolt.1420
%G en
%F 10_5802_jolt_1420

[1] Adams, Jeffrey; Barbasch, Dan Genuine representations of the metaplectic group, Compos. Math., Volume 113 (1998) no. 1, pp. 23-66 | DOI | Zbl | MR

[2] Atiyah, Michael; Schmid, Wilfried A geometric construction of the discrete series for semisimple Lie groups, Invent. Math., Volume 42 (1977), pp. 1-62 erratum 54 (1979), pp. 189–192 | DOI | Zbl | MR

[3] Chuah, Meng-Kiat; Huang, Jing-Song Dirac cohomology and geometric quantization, J. Reine Angew. Math., Volume 720 (2016), pp. 33-50 | DOI | Zbl | MR

[4] Chuah, Meng-Kiat; Huang, Jing-Song; Wolf, Joseph A. Partial Dirac cohomology and tempered representations, J. Funct. Anal., Volume 284 (2023) no. 6, Paper no. 109822, 32 pages | DOI | Zbl | MR

[5] Harish-Chandra Discrete series for semisimple Lie groups. I: Construction of invariant eigendistributions, Acta Math., Volume 113 (1965), pp. 241-318 | DOI | Zbl | MR

[6] Harish-Chandra Discrete series for semisimple Lie groups. II: Explicit determination of the characters, Acta Math., Volume 116 (1966), pp. 1-111 | MR | DOI | Zbl

[7] Huang, Jing-Song; Miličić, Dragan; Sun, Binyong Harish-Chandra orthorganality relations for admissible representations, J. Eur. Math. Soc., Volume 22 (2020) no. 4, pp. 1095-1113 | Zbl | DOI

[8] Huang, Jing-Song; Pandžić, Pavle Dirac cohomology, unitary representations and a proof of a conjecture of Vogan, J. Am. Math. Soc., Volume 15 (2002) no. 1, pp. 185-202 | DOI | Zbl | MR

[9] Huang, Jing-Song; Pandžić, Pavle Dirac operators in Representation Theory, Mathematics: Theory & Applications, Birkhäuser, 2006 | Zbl | MR

[10] Huang, Jing-Song; Pandžić, Pavle; Renard, David Dirac operators and Lie algebra cohomology, Represent. Theory, Volume 10 (2006), pp. 299-313 | DOI | Zbl | MR

[11] Huang, Jing-Song; Pandžić, Pavle; Zhu, Fuhai Dirac cohomology, K-characters and branching laws, Am. J. Math., Volume 135 (2013) no. 5, pp. 1253-1269 | DOI | Zbl | MR

[12] Huang, Jing-Song Dirac cohomology and Dirac induction, Sci. China, Math., Volume 54 (2011) no. 11, pp. 2373-2381 (Special Volume in Honor of Kadison) | DOI | Zbl | MR

[13] Huang, Jing-Song Dirac cohomology, elliptic representations and endoscopy, Representation Theory of Reductive Groups. In Honor of 60th Birthday of David A. Vogan, Jr. Proceedings of the conference, MIT, Cambridge, MA, USA, May 19–23, 2014 (Nevins, Monica et al., eds.) (Progress in Mathematics), Volume 312, Birkhäuser, 2015, pp. 241-276 | DOI | Zbl | MR

[14] Huang, Jing-Song Dirac cohomology and character lifting, Acta Math. Sin., Engl. Ser., Volume 37 (2021) no. 4, pp. 525-537 | DOI | Zbl | MR

[15] Huang, Jing-Song Decomposing tensor product by Dirac cohomology, Transform. Groups (2024) (online first) | DOI | MR

[16] Huang, Jing-Song; Xiao, Wei Dirac cohomology of highest weight modules, Sel. Math., New Ser., Volume 18 (2012) no. 4, pp. 803-824 | DOI | Zbl | MR

[17] Huang, Jing-Song; Xiao, Wei Dirac cohomology and orthogonality relations for weighted modules, Pac. J. Math., Volume 319 (2022) no. 1, pp. 129-152 | MR | DOI | Zbl

[18] Kostant, Bertram Dirac cohomology for the cubic Dirac operator, Studies in Memory of Issai Schur, Studies in memory of Issai Schur (Joseph, Anthony et al., eds.) (Progress in Mathematics), Volume 210, Birkhäuser, 2003, pp. 69-93 | DOI | Zbl

[19] Kostant, Bertram A cubic Dirac operator and the emergence of Euler number multiplets of representations for equal rank subgroups, Duke Math. J., Volume 100 (1999) no. 3, pp. 447-501 | DOI | Zbl | MR

[20] Mehdi, Salah; Pandžić, Pavle; Vogan, David Translation principle for Dirac index, Am. J. Math., Volume 139 (2017) no. 6, pp. 1465-1491 | MR | DOI | Zbl

[21] Meise, Reinhold; Vogt, Dietmar Introduction to Functional Analysis, Oxford Graduate Texts in Mathematics, 2, Clarendon Press, 1997 | DOI | Zbl

[22] Parthasarathy, Rajagopalan Dirac operator and the discrete series, Ann. Math. (2), Volume 96 (1972), pp. 1-30 | DOI | Zbl | MR

[23] Pandžić, Pavle; Somberg, Petr Higher Dirac cohomology of modules with generalized infinitesimal character, Transform. Groups, Volume 21 (2016) no. 3, pp. 803-819 | DOI | Zbl | MR

[24] Wolf, Joseph A. Partially harmonic spinors and representations of reductive Lie groups, J. Funct. Anal., Volume 15 (1974), pp. 117-154 | DOI | Zbl | MR

Cited by Sources: