报告人：丁治国 教授（湖南师范大学）

时间：2025年09月22日 15:00-

地点：理科楼LA103

摘要：The Carlitz-Wan conjecture is one of the most famous problems in the history of permutation polynomials and exceptional polynomials. In 1963, Carlitz and his student Cavior posed a special case of the Carlitz-Wan conjecture as a question. In 1991, Wan（万大庆）posed and proved in some cases a generalization of this question, which became known as the Carlitz–Wan conjecture. In 1994, Lenstra first proved the Carlitz–Wan conjecture in full generality. In 1997, Guralnick and Muller generalized the Carlitz–Wan conjecture to exceptional covers of curves. Recently, we studied the exceptional extensions of local fields, which led to different proofs of the result by Guralnick and Muller. In this talk, I will survey the history and various proofs of the Carlitz-Wan conjecture.

邀请人：傅士硕

欢迎广大师生积极参与！