Yifan Jing (Oxford): Sidon sets and sum-product phenomena
Peter Bradshaw (UIUC): Injective edge colorings of degenerate graphs
林辉球 (华东理工大学) On sum of powers of graph eigenvalues: problems and progress
陈耀俊（南京大学）：Ramsey numbers concerning quadrilaterals
Patrice Ossona de Mendez (CNRS and Univ. of Charles) Twin-width and permutations
Yongtang Shi (南开大学): Planar Turán number of graphs
王周宁馨 (Université Paris Cité): Density of C_{−4}-critical signed graphs
Shichang Song (北京交通大学): Applications of nonstandard analysis to graphon theory
Yijia Chen (上海交通大学) Lovász meets Łoś and Tarski
Bojan Mohar (Simon Fraser): Random embeddings of graphs in surfaces
2. Forbidding a subgraph I- Mantel's theorem and Turán's theorem
Hal Kierstead (ASU): Sparsity from a game theoretic perspective
李若楠(西北工业大学): Properly colored cycles in graphs and directed cycles in digraphs
Chong Shangguan (Shandong University): Some problems in extremal set theory
Marcelo Campos (Oxford)：An exponential improvement to diagonal Ramsey
Randomized Greedy Algorithm for Independent Sets in Regular Uniform Hypergraphs
Ziqing Xiang (Academia Sinica/南方科技大学): Line graphs over the binary field
András Sebő (CNRS): The Salesman and the Postman
林志聪 (山东大学): Permanents and permutation statistics
Bernard Lidický (Iowa State U): Embedded graph 3-coloring and flows
