The doctoral students majoring in mathematics in Tsinghua University Mathematics Science Department are very good. Tsinghua University has a strong faculty and excellent education and teaching quality. Doctoral students majoring in mathematics in the Department of Mathematical Sciences of this university can learn a lot of knowledge, have very in-depth, comprehensive and professional experience, and have a wide range of employment. Therefore, the doctoral students majoring in mathematics in the Department of Mathematical Sciences in Tsinghua University are very good. Tsinghua University, abbreviated as "Tsinghua", located in Haidian District, is a national key university directly under the Ministry of Education of People's Republic of China (PRC). It ranks among the national "Double First Class", "985 Project" and "2 1 1 Project" and is selected as "201Plan" and "Everest". As a member of Nine University Alliance [83], Song Lian Alliance, China University Presidents Association, Asian University Alliance, Global University Presidents Forum, Pacific Rim University Alliance, China-Russia Comprehensive University Alliance and Tsinghua-Cambridge-MIT Low-carbon University Alliance, China is known as the "cradle of red engineers".