Chen Jingrun

Chen Jingrun (Chinese陈景润/陈景润, Pinyin Chén Jǐngrùn, W.-G. Ch'en Chingjun; May 22nd 1933, Fuzhou, Republic of China; † 19 March 1996) was a Chinese mathematician, known for his results in known analytic number theory. He is considered one of China's leading mathematicians of the 20th century and one of the most influential mathematicians in China.

Life

Chen was the third son of a large family of Fuzhou. His father was an employee of the post. 1949-1953 studied Chen Jingrun the mathematical department of Xiamen University and was then a lecturer at the 4th Middle School in Beijing, but was soon dismissed it as unsuitable. Then it turned to the university president, who heard it, as staff at the Xiamen University. While air alarms, he studied the book Additive number theory of Hua Luogeng, leading some works were created, he shall presently give Hua. He wore about before at the annual meeting of the Chinese mathematician in 1956 and in 1957 assistant at Hua at Academia Sinica. Chen was frequently ill and suffered particularly from the effects of the Cultural Revolution from 1966, which had the consequence that the research was set at his institute. After the Cultural Revolution, he became in 1978 a research professor at the Academia Sinica, in which he was elected in 1980 also. In 1984 he was diagnosed with Parkinson's.

Chen received the Chinese National Nature Scientist Award first class, the He- Liang - He- Li- price and the Hua - Luogeng math price.

He was married in 1980 and has a son.

Work

Chen worked at the twin prime conjecture, the waringschen problem, the gold Bach's conjecture and the conjecture of Legendre and so developed the analytical theory of numbers and here especially the additive number theory further.

The set of Chen

The Goldbach conjecture states that every even number can be written as the sum of two primes, and has remained unproven.

Chen delivered in 1966 so far best approximation to Goldbach's Conjecture: he proved that every even number that is greater than a certain minimum limit, as the sum of a prime and a further number can be written, which has at most two prime factors.

Honors

• The asteroid ( 7681 ) Chenjingrun was named after him.
• 1999, a commemorative postage stamp was issued with a silhouette of Chen and a formula from his sentence for gold Bach's conjecture in China

Writings

• On the representation of a larger even integer as the sum of a prime and the product of at most two primes, Kexue Tongbao 17, 1966, pp. 385-386 (in Chinese ); Scientia Sinica 16, 1973, p 157-176 (English; Zentralblatt - Review ); Scientia Sinica 21, 1978, p 421-430 (English; Zentralblatt - Review )