1in June, 950, the new China Academy of Sciences was established soon, and when everything was ready, it set out to set up the Institute of Mathematics. The preparatory office is located at No.3 Street, with the famous mathematician Su Ren as the director, Zhou Peiyuan, Hua and Xu as the deputy directors and Tian Fangzeng as the secretary. The central people's government attaches great importance to raising funds. 1 951June1day, the State Council approved the appointment of the director of Huawei's upcoming Institute of Mathematics. 1952,1July, the institute of mathematics was established in Tsinghua campus, which established the policy of coordinated development of pure mathematics and applied mathematics. The earliest research groups are number theory, differential equations, mechanics, computer development, probability and statistics, algebra, topology and so on. 1953 in the first half of the year, there were 32 researchers in the Institute of Mathematics, including 5 full-time researchers (Hua, Min Naida, Wu Xinmou, Zhang Sucheng, Wu Wenjun), 5 associate researchers (Guan, Tian Fangzeng, Zhuang Fenggan, Xia) and 6 assistant researchers (Lin,, Yue Minyi). There are 1 1 research interns (Lu Qikeng, Hu, Qiu, Ding, Xu Kongshi, He, Sun Hesheng, Roy) and five researchers (Su Buqing, Chen Jiangong, Duan Xuefu, Hu Shihua, Zhang Zongsui). The research direction they pioneered laid the foundation for the development of the Institute of Mathematics. Of these 32 people alone, 17 were later elected as academicians of China Academy of Sciences.

From 65438 to 0956, through the formulation of the Twelve-year Long-term Plan for the Development of Science and Technology in China, the Institute of Mathematics ensured the coordinated development of all important directions of mathematics, and focused on the development of differential equations, probability statistics and other branches closely related to national initiatives and national defense construction. At the same time, functional analysis, mathematical logic and other research groups were set up to strengthen the research of corresponding theoretical disciplines. 1957 Mr. Xiong Qinglai, who came back from French, was responsible for establishing the research group of function theory. In the same period, the research work related to mechanics and computer development went out independently, and the Institute of Mechanics and the Institute of Computing Technology of Chinese Academy of Sciences were established respectively. Inspired by the long-term planning of science and technology development in the past 20 years, the Institute of Mathematics has embarked on the road of marching into science.

1956, China awarded the first national natural science award. Among all the three first prizes, mathematics won two prizes, namely, Hua's Theory of Complex Variables on Typical Fields and Wu Wenjun's Research on Indicator Class and Indicator Class.

During this period, the position of the Institute of Mathematics has changed. 1957 temporarily moved to Xiyuan Hotel, 1958 moved to Zhongguancun.

196 1 established laboratories according to disciplines, including "four disciplines" (number theory, algebra, geometry and topology), function theory, differential equations, functional analysis, mathematical logic, theoretical physics and probability statistics, and merged two laboratories, namely mechanics and mathematics. At the initiative of Qian Xuesen, Hua, Xu Guozhi and others, 1962 Due to the needs of national projects, a control theory laboratory led by Guan He and Song Jian was newly established. Then the mechanical laboratory was reset. All kinds of research work is progressing rapidly. 196 1-1965 is a relatively stable development period for the Institute of Mathematics to implement the policy of "producing results and talents". 1966 After the Cultural Revolution began, the research work came to a standstill. From 65438 to 0972, Premier Zhou Enlai's instruction on strengthening the research of basic theory made the mathematics research work start again. 1973, Chen Jingrun officially published his research on Goldbach's conjecture; From 65438 to 0975, Yang Le and Zhang Guanghou published their research on the theory of value distribution. The finite element method was founded by Feng Kang and others independently of the West in the early 1960s, and has been widely used in many departments of national economy and national defense construction. These representative works show the world the landmark achievements made by researchers in the Institute of Mathematics under extremely difficult conditions.

1976 After the downfall of the Gang of Four, especially the convening of the 1978 National Science Conference ushered in the spring of science. In the atmosphere of respecting knowledge and talents, the researchers of the Institute of Mathematics strive to catch up with the international frontier of mathematics, and the work in all fields of pure mathematics and applied mathematics has been comprehensively and rapidly promoted and embarked on the track of healthy development.

At the end of 1979, according to the decision of China Academy of Sciences, some people separated from the Institute of Mathematics and set up the Institute of Systems Science, engaged in the research of cybernetics, operational research, statistics, systems engineering and related marginal disciplines of mathematics. Some researchers from the Institute of Mathematics merged with those from the former Office for the Promotion of Applied Mathematics of China Academy of Sciences to form the Institute of Applied Mathematics. Mathematics focuses on basic theoretical research, taking into account applied mathematics, computer science and other directions. The previous directors of Institute of Mathematics are: Hua, Lu Qikeng (executive deputy director), Yang Le, Long and Li Bingren (acting director).

1982, when the state resumed awarding natural science awards, mathematics was once again entrusted by the society for its high-level achievements. From 65438 to 0985, under the guidance of academicians Wang Yuan and Yang Le, Institute of Mathematics became one of the earliest open research institutes of China Academy of Sciences. 199 1 The address was moved toNo. 1, Nansi Street, Zhongguancun (now No.55 Zhongguancun East Road). 199865438+February, under the impetus of the knowledge innovation project of China Academy of Sciences, the Institute of Mathematics and System Science, the Institute of Applied Mathematics and the Institute of Computational Mathematics and Scientific Engineering Computing (formerly the Computing Center of China Academy of Sciences, established in 1977) were integrated into the Institute of Mathematics and System Science.