Olympiad Mathematics

Selected lecture notes.

Nullstellensatz Theorem and its application: Combinatorial Nullstellensatz, Hilbert's Nullstellensatz, and Positivstellensatz (in Chinese). Team of Beijing for Chinese Mathematical Olympiad, 2017.

零点定理及其应用. 北京CMO代表队, 2017.

An introduction to automated polynomial inequalities proving (in Chinese). Chinese Mathematical Olympiad National Team, 2017.

浅谈多项式不等式的证明方法. 中国数学奥林匹克国家集训队, 2017

Insolvability of Quintic Equations (Elementary proof, in Chinese), 2017.

一般的高次方程不可根式求解, 2017.

100 interesting polynomial inequalities (in Chinese), 2015.

100个有趣的不等式问题, 2015.