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Home || Talks

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Conference Talks

• Sep. 4, 2023. Tight block designs,
  2023 International Conference on Combinatorics and Finite Geometry, Southern University of Science and Technology.
• Aug. 7, 2023. Quantum wreath product,
  2023 International Algebra Conference in the Philippines, Mindanao State University-Iligan Institute of Technology.
• Jun. 4, 2023. Finiteness of tight combinatorial designs,
  Workshop on Algebraic Combinatorics and its Applications, Xi’an Jiaotong University.
• Apr. 14, 2023. Tight combinatorial designs and Diophantine equations,
  2023 Workshop on Number Theory and its Application, Wuhan University.
• Nov. 11, 2022. Finiteness of tight combinatorial designs,
  2022 Workshop on Combinatorics, Graph Theory and Group Theory, Southern University of Science and Technology.
• Jun. 16, 2022. Nonexistence of \(s\)-distance \(2s\)-designs on projective unitary groups,
  16th International Symposium on Orthogonal Polynomials, Special Functions and Applications, Centre de recherches mathématiques (online).
• Jan. 24, 2022. Solving Diophantine equations arising from algebraic combinatorics,
  2022 Workshop on Algebraic Combinatorics, Academia Sinica (online).
• 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.

Seminar talks

• Jun. 3, 2022. Line grpahs over the binary field,
  SCMS Combinatorics Seminar, Shanghai Center for Mathematical Sciences (online).
• Dec 10, 2021. Designs and codes,
  Chinese Academy of Sciences (online).
• Jan. 9, 2021. Designs and codes,
  Southern University of Science and Technology (online).
• 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 Academia Sinica.
• 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.