Some problems on colouring and list colouring of planar graphs

Speaker: Xuding Zhu(Zhejiang Normal University)

Time: Oct 30, 2025, 10:00-11:00

Location: M1001, College of Science Building

The ranks of tensors and their applications

Speaker: Thomas Karam（Shanghai Jiaotong University）

Time: Oct 20, 2025, 10:00-11:00

Location: M1001, College of Science Building，Tencent Meeting ID: 247 426 854

Tur\'{a}n number of books in non-bipartite graphs

Speaker: Ruifang Liu(Zhengzhou University)

Time: Oct 16, 2025, 10:00-11:00

Location: Room M4009, College of Science Building，Tencent Meeting ID: 526 396 130

On 3-graphs with vanishing codegree Turán density

Speaker: Laihao Ding（Central China Normal University）

Time: Oct 9, 2025, 10:00-11:00

Location: M1001, College of Science Building

Some Topics in Sperner Theory

Speaker: Yi Wang(Dalian University of Technology)

Time: Sep 25, 2025, 10:00-11:00

Location: Room M4009, College of Science Building，Tencent Meeting ID: 381 567 537

The spread of graphs

Speaker: Yi Wang(Anhui University)

Time: Sep 18, 2025, 10:00-11:00

Location: M1001, College of Science Building，Tencent Meeting ID: 230 949 914

Solution of the dimer problem on the three-dimensional Sierpinski gasket

Speaker: Weigen Yan(Jimei University)

Time: May 22, 2025, 10:00-11:00

Location: M1001, College of Science Building，Tencent Meeting ID: 498 500 227

Deformations of Azumaya Algebras with Quadratic Pair

Speaker: Cameron Ruether(Institute of Mathematics of the Romanian Academy)

Time: May 20, 2025, 16:20-17:20

Location: M1001, College of Science Building

Three new infinite families of divisible design graphs based on symplectic spaces

Speaker: Sergey Goryainov（Hebei Normal University）

Time: May 15, 2025, 10:00-11:00

Location: M1001, College of Science Building，Tencent Meeting ID: 876 235 785

Truncated sums of theta function identities

Speaker: Xianwei Xia（Suzhou University of Science and Technology）

Time: Apr 17, 2025, 10:00-11:00

Location: M1001, College of Science Building，Tencent Meeting ID: 329 689 224

Can hyperinterpolation part with quadrature exactness?

Speaker: Congpei An（Guizhou University）

Time: Apr 15, 2025, 14:00-15:00

Location: M1001, College of Science Building

Erdos-Ko-Rado type results via spread approximations

Speaker: Andrei Kupavskii（Moscow Institute of Physics and Technology）

Time: Apr 10, 2025, 10:00-11:00

Location: Room M4009, College of Science Building，Tencent Meeting ID: 298 668 764

Uniform set systems with small VC-dimension

Speaker: Zixiang Xu（Extremal Combinatorics and Probability Group, Institute for Basic Science）

Time: Apr 3, 2025, 10:00-11:00

Location: M1001, College of Science Building

Mutually Unbiased Sets of Orthogonal Vectors: Bound and Constructions

Speaker: Zilong Wang（Xidian University）

Time: Mar 27, 2025, 11:00-12:00

Location: M1001, College of Science Building，Tencent Meeting ID: 350 838 682

Some interlacing sequences related to Eulerian and derangement polynomials

Speaker: Li Liu（Qufu Normal University）

Time: Mar 27, 2025, 10:00-11:00

Location: M1001, College of Science Building，Tencent Meeting ID: 350 838 682