报告题目：The classification of complete regular dessins

报告摘要：A complete dessin is an orientable map with underlying graph being a complete bipartite graph, which is said to be regular if all edges are equivalent under the group of color- and orientation- preserving automorphisms. Regular dessins possess excellent geometric and algebraic properties, which have been involved in numerous interdisciplinary problems, including finite groups, Riemann surfaces, algebraic curves, and Galois theory, attracting significant attention in recent years.

The classification problem of complete regular dssins is an open problem posed by British mathematician Gareth Jones in 2007. In this talk, I will introduce some of the work I have done regarding this problem in recent years.

报告人简介：范文文，云南师范大学数学学院教授，硕士生导师，兴滇英才青年人才。研究方向为代数图论与群论。2014年于云南大学获博士学位，长期从事正则dessins、边传递图及相关分类问题研究。主持多项国家及省部级科研项目，包括国家自然科学基金地区项目等。以第一/通讯作者在Journal of Combinatorial Theory Series A、Journal of Algebraic Combinatorics等期刊发表SCI论文多篇。曾获云南省高校教师教学大赛一等奖、红云园丁奖等荣誉。

报告时间：2025年10月2日（星期四）9:30

报告地点：365电子娱乐官方网站数学与统计学院3406

联系人：沈如林

欢迎广大师生参加！