1. In 1953, the Academy of Sciences organized an overseas study tour, headed by the famous scientist Qian Sanqiang. The members include Hua Luogeng, Zhang Yuzhe, Zhao Jiuzhang, Zhu Xian and many others.

Having nothing to do on the way, Hua Luogeng wrote the first couplet: "The three strong ones are Han, Zhao and Wei," asking for a counterpoint to the second couplet. The "Three Strong" here refers to the three Warring States periods of Han, Zhao and Wei during the Warring States Period, but it also implies the name of Comrade Qian Sanqiang, the leader of the delegation. This not only requires solving the traditional difficulty of numerical linking, but also requires that the second line be included in the second line. Embed the name of another scientist.

After a while, Hua Luogeng saw that everyone still had no second line, so he revealed his own line: "Nine Chapters hook, strand, string." "Nine Chapters" is a famous mathematical work in ancient my country. However, the "Jiuzhang" here happens to be the name of another member of the delegation, atmospheric physicist Zhao Jiuzhang. Hua Luogeng's wonderful pairing captivated the entire audience.

In 1980, Professor Hua Luogeng wrote the following couplet when he was instructing the coordination method and optimization method in Suzhou: Watching chess without speaking is not a gentleman, helping each other; a man who regrets his moves will correct his mistakes.

2. While continuing to engage in mathematical theoretical research, he tried hard to find a way to combine mathematics with industrial and agricultural practice. After a period of practice, he discovered that the coordinating method and optimization method in mathematics are commonly used methods in industrial and agricultural production, which can improve work efficiency and change the face of work management. Therefore, while giving lectures at the University of Science and Technology, he led students to promote the optimization method and the overall planning method in industrial and agricultural practice. ?

In early 1964, he wrote a letter to Mao Zedong, expressing his determination to take the road of integrating workers and peasants. On March 18 of the same year, Mao Zedong wrote a reply in his own hand: "The poems and letters have been read. It is gratifying to have great ambitions."

He wrote "Pinghua of Coordinating Methods and Supplements", "Pinghua of Optimized Methods and Supplements" ", personally led teachers and students from the University of Science and Technology of China to promote and apply the "dual method" in some corporate factories to serve industrial and agricultural production. "In summer, we go to Jianghan to fight the scorching heat; in winter, we go to pines and mountains to be proud of the frost." This is a portrayal of his life at that time. In 1965, Mao Zedong wrote to him again, congratulating and encouraging him to "work hard and serve the people not for individuals." Extended information

Hua Luogeng's early research field was analytic number theory. His achievements in analytic number theory are particularly well-known. The internationally renowned "Chinese Analytical Number Theory School" is the school founded by Hua Luogeng. This school is devoted to the distribution of prime numbers. The problem and Goldbach's conjecture have made many significant contributions.

Hua Luogeng is also the founder and pioneer of research in many aspects such as analytic number theory, matrix geometry, typical groups, and automorphic function theory in China. ?

Hua Luogeng's research on function theory of multiple complex variables and typical groups leads the Western mathematics community for more than 10 years, and he is an internationally renowned "Chinese school of typical groups".

Created the Chinese school of mathematics and led it to reach world-class levels. It has trained many outstanding young people, such as Wang Yuan, Chen Jingrun, Wan Zhexian, Lu Qikeng, Gong Sheng, etc.