Lining

July 2014-November 2019, Ph.D. in Mathematics, National University of Singapore. Advisor: Chen-Bo Zhu

September 2010-July 2014, B.S. in Mathematics, Jilin University. 

July 2022-Now, Assistant Professor, Nankai University.

July 2020-June 2022, Postdoc, BICMR, Peking University. Mentor: Jun Yu

December 2019-May 2020, Research Assistant, Department of Mathematics, National University of Singapore

My research interests focus on the representation theory of real reductive groups, including geometric invariants of representations (associated cycles, wavefront cycles), (relative) Lie algebra cohomology, branching laws, the structure of degenerate principal series, and applications of intertwining operators.

Representation theory of real reductive groups

Nankai University

Teaching

February 2026-June 2026. Lie groups and algebraic groups

February 2026-June 2026. The Theory of Lie groups

February 2026-June 2026. Algebra

February 2024-June 2024. Algebra

February 2024-June 2024. Abstract algebra II

February 2024-June 2024. Lie groups and algebraic groups

February 2024-June 2024. The Theory of Lie groups

August 2023-January 2023. Introduction to representation theory (In English)

September 2023-January 2023. Algebra

February 2023-June 2023. Algebra

February 2023-June 2023. Seminar on Associated cycles, wavefront cycles and characteristic cycles

August 2022-December 2022. Analysis

August 2022-December 2022. Representation theory of Lie groups and Lie algebras.

Seminar

August 2025-January 2026. Intertwining operators in representation theory

February 2025-June 2025. The branching problem in representation theory of real classical groups

February 2023-June 2023. Geometric invariants of Lie group representations

Peking University

March 24-April 7 2022. Introduction to representation theory of real reductive groups.

National University of Singapore

January 2019-April 2019. MA1521 Calculus for Computing. Tutor

August 2016-April 2018. GEK1505/GEH1036 Living With Mathematics. Tutor

January 2016-May 2016. MA1506 Mathematics II. Tutor

August 2015-November 2015. MA1301 Introductory Mathematics. Tutor

Ning Li. Degenerate principal series and nilpotent invariants. Mathematische Zeitschrift 300.3 (2022): 2117-2145.

Ning Li, Gang Liu, and Jun Yu. A proof of Casselman’s comparison theorem. Representation Theory of the American Mathematical Society 25.35 (2021): 994-1020.

Ning Li and Chuijia Wang. Transfer between theta lifts of trivial representations. Journal of Functional Analysis 290.8 (2026): 1-33.

Conference Organized

August 3-17, 2025: Conference on relative Langlands Program, TianYuan Mathematics Research Center, Kunming, China

July 13-17, 2025: Workshop on Recent Progress on Representation Theory of Reductive Groups and Quantum Theory, Chern Institute of Mathematics, Nankai University, Tianjin, China.

July 21-27, 2024: Real Reductive Groups and Theta correspondence, TianYuan Mathematics Research Center, Kunming, China

July 9-12, 2024: Symposium on Representation Theory and Automorphic Forms, Chern Institute of Mathematics, Nankai University, Tianjin, China

August 19-20, 2022: Mini Conference on Representation Theory of Reductive Groups, Nankai University, Tianjin, China