Zhang Guangqi

Character's life-grade

January 22, 1937, Zhang Guangqi was born in Dongmine District, Tangshan City (now renamed Gu Ye District) Linxi, ancestral home, seven years old with his father When the mine is child labor, it is hard to be hard, from Xia Li, a sense of ambition: Be sure to be a culture.

At the end of 1948, Zhang Guangqi returned to the campus, graduated from the sixth grade of the class, and he worked hard.

In 1950, he was admitted to the new middle school with excellent results (Today's Second Middle School). After graduating from 1953, he was admitted to Kailuan First Middle School.

In 1956, graduated from the first batch of key high school Tangshan City, Hebei Province, and was admitted to the Department of Mathematics Mechanics in Peking University. Zhang Guangqi is the only student in the same graduates in the same graduates in the University. His graduation thesis has also been published in a well-known mathematics magazine.

In 1962, under the guidance of Zhuang Thai Peking University, I was admitted to the Institute of Mathematics in the Chinese Academy of Sciences, and Teachers from Mathematics Seniors Xiong Qinglai.

In 1966, after graduating from graduate student, he was held in the study of mathematics of the Chinese Academy of Sciences, and the 1977 deputy researchers were raised as researchers in 1979.

In October 1983, the Party Central Committee was appointed as the Secretary of the National Association, the party members. In order to study mathematics, he is always overloaded. The retinal inflammation, glass ball turbidity, he covered the left eye of the illness and continued work, and made significant contributions to the development of the National Mathematics in Amazing Perseverance until finally

In 1987, Zhang Guangqi has died early, and the year is only 50 years old.

Today, Today, February 22, 1978, the "People's Daily" is reported to report "in the theory research of function", it is important for the majority of the world, "report" Youth Mathematics Zhang Guangqi In the "Successful Find", the loss value of the whole function or the Liam positive function is successfully found, the inclusive value and the organic link between the three of Juri are the important results of the world level.

Main results

In the second half of 1964, Zhang Guangqi and Yang Le began to work together to study all pure and submunction function. They developed the way to eliminate the original value and got a good result. Just when they put into functional theory research, an unprecedented "Cultural Revolution" began. Zhang Guangqi was rushed to Zhongcheng Labor, and then went to Tianjin Small Station Liberation Army farm to work for a year and a half.

In the early 1970s, with the cultural imprisonment of crushing and economic, scientific and technological reform, especially Zhou Enlai personally passed on the work of the Academy, affirmed the importance of basic theory research. In just a few years, he worked with Yang Le, the first discovery of the two main concepts of the "loss" and "odd direction" in the first time, and was named Zhang Yang. Then, Zhang Guang has begun to study the three concepts of "loss", "gradual value" and "Junya direction", which are three important concepts in the theory of function. As early as 1929, Finland's famous mathematician Nahalina has also made the same guess, but 10 years later, his guess was denied. 40 years later, such a problem with the famous mathematician has been denied, in Zhang Guangqi Troad, finally found a reasonable solution, and made this research in this study. "Chinese Science" in March 1973, specially issued a period of issue. Xinhua News Agency, "People's Daily" is also reported to report by "Zhang Guangqi and the results of the world level" in the prominent position.

In the early 1970s, Chinese culture banned, economical, scientific and technological reform, and Zhou Enlai personally took the work of the Academy of Science, affirmed the importance of basic theory research. In just a few years, Zhang Guangqi and Yang Le cooperated, the two main concepts of the "Loss" and "Singular Direction" in the first discovery of "loss" and "strange direction" are named Zhang Yang. For a long time, mathematicians always believe that the loss and singular directions are two completely different concepts in the study of value distribution, and there is no connection between each other.

1974 Yang Le and Zhang Guangqi's cooperative study revealed that there is a clear, close relationship between these two basic concepts, and given this connection given quantitative expression . Theorem said: For the vast majority of the submunction function (with poor level), the number of losses must not exceed its singular direction. For whole functions, the conclusion can also be strengthened, that is, the number of deficiases must not exceed half of its singular direction, and they will illustrate the above results. Yang Le, Zhang Guanghou's results are breakthroughs, providing a new direction for value distribution research. Zhang Guanghou's "loss", "gradual value" and "Juruya direction" three concepts, which is the three important concepts in the theory of function. In 1929, Finnish mathematician Nahalina has also made the same guess, but 10 years later, his guess was denied.

February 21, 1978, the mathematician Zhang Guangqi won the important results of the world level in the theory of function. He successfully found the losses of the whole function or the Ya positary function, the inclusion value and the Rusiya direction (a singular direction), giving this connection, indicating the whole The objective law reflected by the function or the Yazi function. Find this solution to the well-known mathematician research but negated problems.

Main work

The attribute of the cut-to-direction aggregation and boundary points

Winning record

1978 National Science Conference Major Science and Technology Achievement Award

1982 National Natural Science Second Prize.

Monologist "The" Intelligence and Yacheng Function Theory "won the first prize of the National Excellent Science and Technology Book.

Social job

has served as Vice Chairman of the Second Committee of Beijing Science and Technology, Secretary of the Secretary of China, China Academy of Science, Beijing Party Committee, Chinese Academy Party Committee, Chinese Communist Party The 12th National Congress representative.

Character evaluation

has been engaged in the research work of single-rehabilitation function theory, whole function, and sub-function theory, for several important concepts, loss, asympto, singular direction and The relationship between the level gives a variety of precise expressions. In terms of the theory of asymptotia, the length estimation of the asymptotic path, and the function estimated along the growth path growth, affirmatively answered the five issues raised at the International Function Conference; in the theory of value distribution, Yang Le cooperated to completely solved the distribution law of the Borel direction of the Ya positary function, published more than 20 papers, mainly: "Research on the loss of the whole function and the losses of the Ya positary function, the relationship between the gradual value and the direction of Juri Ya", "Getting Function and Asymptotic Values". The results of cooperation with Yang Le, known as "Yang Zhang Qixi", "Yang Zhang Wei".