题目：           Counting polynomial sums in finite commutative rings

报告人：      李吉有 (上海交通大学数学科学学院)

时间地点：   2018.07.11  15:00pm  N205

摘要：           Let $R$ be a finite commutative ring and $D$ be a subset of $R$. For a polynomial $f(x)$ in $R[x]$ and a positive integer $k$, we enumerate $k$-subsets $S$ in $D$ such that the polynomial sum over $S$ is a given element. In this talk,  I will introduce some recent progress on this problem and its applications in combinatorics, number theory and coding theory.
This talk is based on joint work with Daqing Wan.