- Nov. 8, 2020. Finiteness of tight combinatorial designs.

Workshop on Combinatorics, Shanghai Jiao Tong University (online). - Sep. 2, 2020. On \(q\)-Schur algebras of classical type,

2020 Taipei Workshop on Representation Theory and Related Topics, Academia Sinica. - Jun. 28, 2020. Graph orientations and the matrix-tree theorem, \(2 \pi\) day, Shanghai Jiao Tong University (online).
- Aug. 15, 2019. Root systems over \(F_2\),

Groups and Graphs, Designs and Dynamics, Three Gorges Mathematical Research Center. - Jul. 11, 2019. On \(q\)-Schur algebras of classical type,

International Conference on Representation Theory VIII, Harbin Engineering University. - Jul. 1, 2019. New lower bound on the sizes of designs,

The 2019 Workshop on Combinatorics and Quantum Information Theory, Shanghai University. - May 13, 2019. Isomorphism theorem between \(q\)-Schur algebras of classical type,

Southeastern Lie Theory Workshop XI, Louisiana State University. - Mar. 15, 2019. Isomorphism theorem between \(q\)-Schur algebras of type B and type A,

Spring Southeastern Sectional Meeting, Auburn University. - Oct. 19, 2018. Diophantine equations related to tight designs,

Design Theory from the Viewpoint of Algebraic Combinatorics, Three Gorges Mathematical Research Center. - Oct. 19, 2018. New lower bound on the sizes of designs,

Design Theory from the Viewpoint of Algebraic Combinatorics, Three Gorges Mathematical Research Center. - Oct. 16, 2018. Existence of rational designs,

Design Theory from the Viewpoint of Algebraic Combinatorics, Three Gorges Mathematical Research Center. - Oct. 16, 2018. Explicit constructions of designs,

Design Theory from the Viewpoint of Algebraic Combinatorics, Three Gorges Mathematical Research Center. - Jun. 11, 2018. Support varieties for Hecke algebras,

Southeastern Lie Theory Workshop X, University of Georgia. - Nov. 25, 2017. An explicit construction of spherical designs,

International workshop on Bannai-Ito theory, Zhejiang University. - Apr. 25, 2015. The lit-only \(\sigma\)-game,

2015 Workshop on Combinatorics and Applications at SJTU, Shanghai Jiao Tong University. - Apr. 24, 2015. Spherical designs over a number field,

2015 Workshop on Combinatorics and Applications at SJTU, Shanghai Jiao Tong University. - Oct. 27, 2014. Tight block designs,

Sphere Packings, Lattices, and Designs, Erwin Schrรถdinger International Institute. - Nov. 19, 2013. Product of P-polynomial association schemes,

Workshop on Algebraic Combinatorics, Hebei Normal University. - Jun. 24, 2013. Lit-only \(\sigma\)-game,

The 2nd Pacific Rim Mathematical Association Congress, Shanghai Jiao Tong University. - Nov. 21, 2012. Some \(s\)-distance set in hyperbolic space,

Mini-Workshop on Spherical Designs and Related Topics, Shanghai Jiao Tong University. - Nov. 11, 2012. Incidence matrix and cover matrix,

The 2nd Japan-Taiwan Conference on Combinatorics and its Applications, Nagoya University. - Aug. 18, 2012. Nonexistence of nontrivial tight \(8\)-design,

2012 Shanghai Conference on Algebraic Combinatorics, Shanghai Jiao Tong University. - Sep. 16, 2011. Fisher type inequality,

Workshop on Algebraic Combinatorics, Shanghai Jiao Tong University.

- Sep. 29, 2020. Majorana representation of complex vectors, Temperley-Lieb category, and two variable hypergeometric series, Colloquium, National Chiao Tung University.
- Sep. 25, 2020. Cactus skeleton: a generalization of wheels within wheels theorem , Seminar on Combinatorics
- Sep. 18, 2020. Solving Diophantine equations arising from algebraic combinatorics, Seminar on Combinatorics, Academia Sinica.
- Sep. 11, 2020. A matrix-tree theorem on mixed graphs, Seminar on Combinatorics, Academia Sinica.
- Jul. 31, 2020. Some mathematics behind the lights out game, Seminar on Combinatorics, Academia Sinica.
- Mar. 26, 2020. On \(q\)-Schur algebras of classical types,

Colloquium, National Cheng Kung University. - Mar. 18, 2020. An invitation to spherical designs,

Taipei Postdoc Seminar, National Center for Theoretical Sciences. - Nov. 6, 2019. Support varieties for Iwahori-Hecke algebras,

Seminar in Representation Theory, Academia Sinica. - Jun. 21, 2019. Support varieties for Iwahori-Hecke algebras,

Algebra Seminar, Henan University. - Apr. 1, 2019. On \(q\)-Schur algebras of classical type,

Algebra Seminar, University at Buffalo. - Mar. 18, 2019. Representation theory for Iwahori-Hecke algebras and Schur algebras of classical type,

Algebra Seminar, University of Georgia. - Jul. 27, 2018. Good subsets of the unit circle,

Graduate student summer conference, University of Georgia. - Feb. 5, 2018. Support varieties for Hecke algebras,

Algebra Seminar, University of Georgia. - Nov. 6, 2017. An introduction to Soergel bimodules,

Algebra Seminar, University of Georgia. - Jul. 26, 2017. Dimensions of Specht modules,

Graduate student summer conference, University of Georgia. - May 29, 2017. An explicit construction of spherical designs,

Combinatorics Seminar, Shanghai Jiao Tong University. - Jul. 28, 2016. Support varieties of Iwahori-Hecke algebras of type A,

Graduate student summer conference, University of Georgia. - Apr. 13, 2016. Sphere packings, spherical codes and spherical designs,

Number Theory Seminar, University of Georgia. - Jan. 28, 2015. Nonexistence of tight \(8\)-design,

Number Theory Seminar, University of Georgia. - Jul. 9, 2014. Structure of strongly connected digraphs,

Combinatorics Seminar, Shanghai Jiao Tong University. - Apr. 12, 2014. Laplacians,

Combinatorics Seminar, Shanghai Jiao Tong University. - Jun. 13, 2013. Relative designs, totally positive sequence and zero distribution,

Combinatorics Seminar, Shanghai Jiao Tong University. - Nov. 21, 2012. Some \(s\)-distance sets in hyperbolic space,

Combinatorics Seminar, Shanghai Jiao Tong University. - Jun. 6, 2012. On the nonexistence of nontrivial tight \(8\)-design,

Combinatorics Seminar, Shanghai Jiao Tong University. - Apr. 22, 2012. Rational spherical \(t\)-semidesign,

Combinatorics Seminar, Shanghai Jiao Tong University. - Mar. 4, 2012. A glimpse at \(P\)-polynomial association schemes,

Combinatorics Seminar, Shanghai Jiao Tong University.