Chen Jingrun
Chen Jingrun | |
---|---|
Born |
Fuzhou, Fujian Province, China |
May 22, 1933
Died | March 19, 1996 | (aged 62)
Nationality | Chinese |
Alma mater |
Chinese Academy of Sciences Xiamen University |
Known for | Chen's theorem, Chen prime |
Scientific career | |
Fields | Mathematics |
Doctoral advisor | Hua Luogeng |
Chen Jingrun (simplified Chinese: 陈景润; traditional Chinese: 陳景潤; pinyin: Chén Jǐngrùn; Wade–Giles: Ch'en Ching-jun; Foochow Romanized: Dìng Gīng-ê̤ṳng, May 22, 1933 – March 19, 1996) was a Chinese mathematician who made significant contributions to number theory.
Contents
Personal life
Chen was the third son in a large family from Fuzhou, Fujian, China. His father was a postal worker. Chen Jingrun graduated from the Mathematics Department of Xiamen University in 1953. His advisor at the Chinese Academy of Sciences was Hua Luogeng.
Research
His work on the twin prime conjecture, Waring's problem, Goldbach's conjecture and Legendre's conjecture led to progress in analytic number theory. In a 1966, paper he proved what is now called Chen's theorem: every sufficiently large even number can be written as the sum of a prime and a semiprime (the product of two primes) – e.g., 100 = 23 + 7·11.
Commemorations
The Asteroid 7681 Chenjingrun was named after him.
In 1999, China issued an 80-cent postage stamp, titled The Best Result of Goldbach Conjecture, with a silhouette of Chen and the inequality:
Several statues in China have been built in memory of Chen. At Xiamen University, the names of Chen and four other mathematicians — Peter Gustav Lejeune Dirichlet, Matti Jutila, Yuri Linnik, and Pan Chengdong — are inscribed in the marble slab behind Chen's statue (see image).
Works
- J.-R. Chen, On the representation of a large even integer as the sum of a prime and a product of at most two primes, Sci. Sinica 16 (1973), 157–176.
- Chen, J.R, "On the representation of a large even integer as the sum of a prime and the product of at most two primes". [Chinese] J. Kexue Tongbao 17 (1966), 385–386.
See also
References
- Pan Chengdong and Wang Yuan, Chen Jingrun: a brief outline of his life and works, Acta Math. Sinica (NS) 12 (1996) 225–233.
External links
- Chen Jingrun at the Mathematics Genealogy Project
- Chen's home page(in Chinese) at the Chinese Institute of Mathematics .
- A Chinese stamp from 1999 commemorating Chen.
- 1933 births
- 1996 deaths
- Ethnic Fuzhou people
- 20th-century Chinese mathematicians
- Chinese mathematicians
- Members of the Chinese Academy of Sciences
- Number theorists
- Educators from Fujian
- Guizhou Nationalities University faculty
- Henan University faculty
- Xiamen University faculty
- Qingdao University faculty
- Huazhong University of Science and Technology faculty
- Fujian Normal University faculty
- People's Republic of China science writers
- Writers from Fuzhou
- Scientists from Fujian
- Xiamen University alumni