讲座提要：

As multivariate generalizations of the Riemann zeta values, multiple zeta values and their variants have arisen in various contexts in geometry, knot theory, mathematical physics and arithmetical algebraic geometry. In this talk, we will first recall some basic facts about multiple zeta values. Then we will focus on the Ohno-Zagier type relations for multiple zeta values and their variants. In particular, we will talk about the Ohno-Zagier type relations for multiple zeta values of level two.

主讲人介绍：

李忠华，同济大学数学科学学院副院长，研究方向为代数与数论，长年讲授数学专业的高等代数课程。

Personal hompage：

https://math.tongji.edu.cn/info/1386/7685.htm