| Chen Jingrun | |
| Born | May 22, 1933 |
|---|---|
| Died | March 19, 1996 |
| Fields | Mathematics |
| Known for | Chen theorem |
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This article contains Chinese text. Events 334 BC - The Greek army of Alexander the Great defeats Darius III of Persia in the Battle of the Granicus. Year 1933 ( MCMXXXIII) was a Common year starting on Sunday (link will display full calendar of the Gregorian calendar. Events 1279 - A Mongolian victory in the Battle of Yamen ends the Song Dynasty in China. Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) Mathematics is the body of Knowledge and Academic discipline that studies such concepts as Quantity, Structure, Space and Chen's theorem was first stated by Chinese Mathematician Chen Jingrun in 1966 with further details of the proof in 1973 Without proper rendering support, you may see question marks, boxes, or other symbols instead of Chinese characters. Mojibake is the happenstance of incorrect unreadable characters (garbage characters shown when Computer software fails to render a text correctly according to its associated A Chinese character, also known as a Han character ( is a Logogram used in writing Chinese (hanzi Japanese ( |
- This is a Chinese name; the family name is Chen. Personal Names in Chinese culture follow a number of conventions different from those of personal names in Western cultures. Chinese family name is one of the hundreds or thousands of Family names that have been historically used by Han Chinese and Sinicized Chinese ethnic Chén ( is one of the most common Chinese family names It ranks at the 5th most popular surname in Mainland China and the most popular surname in Singapore
Chen Jingrun (traditional Chinese: 陳景潤; simplified Chinese: 陈景润; pinyin: Chén Jǐngrùn; Wade-Giles: Ch'en Chingjun, May 22, 1933–March 19, 1996) was a Chinese mathematician who made significant contributions to number theory. Pinyin, more formally Hanyu pinyin, is the most common Standard Mandarin Romanization system in use Wade-Giles (ˌweɪdˈʤaɪlz) sometimes abbreviated Wade, is a Romanization system (phonetic notation and Transcription) for the Mandarin Events 334 BC - The Greek army of Alexander the Great defeats Darius III of Persia in the Battle of the Granicus. Year 1933 ( MCMXXXIII) was a Common year starting on Sunday (link will display full calendar of the Gregorian calendar. Events 1279 - A Mongolian victory in the Battle of Yamen ends the Song Dynasty in China. Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) China ( Wade-Giles ( Mandarin) Chung¹kuo² is a cultural region, an ancient Civilization, and depending on perspective a National A mathematician is a person whose primary area of study and research is the field of Mathematics. Number theory is the branch of Pure mathematics concerned with the properties of Numbers in general and Integers in particular as well as the wider classes Chen is ranked as one of the leading mathematicians in the twentieth century and one of China's most influential mathematicians in history.
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Personal life
Chen was the third son in a large family from Fuzhou, Fujian, China. ( Foochow Romanized: Hók-ciŭ EFEO: Fou-Tcheou also seen as Foochow, Fuchow, Fuh-chau or Hokchew in earlier Western This article is about the People's Republic of China province China ( Wade-Giles ( Mandarin) Chung¹kuo² is a cultural region, an ancient Civilization, and depending on perspective a National His father was a postal worker. Chen Jingrun graduated from the Mathematics Department of Xiamen University in 1953. Xiamen University (XMU Latin: Universitas Amoiensis Pinyin: Xiàmén Dàxué POJ: E-mng Toa-hak Simplified Chinese: 厦门大学 colloquially His advisor at Chinese Academy of Sciences was Hua Luogeng. The Chinese Academy of Sciences ( CAS) ( formerly known as Academia Sinica (not to be confused with the Republic of China 's (Taiwan Academia Hua Luogeng ( 12 November 1910 – 12 June 1985 was a Chinese Mathematician born in Jintan Jiangsu.
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. The twin prime conjecture is a famous unsolved problem in Number theory that involves Prime numbers It states There are infinitely many primes In Number theory, Waring's problem, proposed in 1770 by Edward Waring, asks whether for every Natural number k there exists an associated positive Goldbach's conjecture is one of the oldest unsolved problems in Number theory and in all of Mathematics. Legendre's conjecture, proposed by Adrien-Marie Legendre, states that there is a Prime number between n 2 and ( n + 12 In Mathematics, analytic number theory is a branch of Number theory that uses methods from Mathematical analysis to solve number-theoretical problems 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 either two primes, or a prime and a semiprime (the product of two primes) — e. In Mathematics, a proof is a convincing demonstration (within the accepted standards of the field that some Mathematical statement is necessarily true Chen's theorem was first stated by Chinese Mathematician Chen Jingrun in 1966 with further details of the proof in 1973 In Mathematics, the phrase sufficiently large is used in contexts such as P is true for sufficiently large x which is actually shorthand In Mathematics, a prime number (or a prime) is a Natural number which has exactly two distinct natural number Divisors 1 In Mathematics, a semiprime (also called biprime or 2- Almost prime, or pq number) is a Natural number that is the product g. , 100 = 23 + 7·11.
Commemorations
The Asteroid 7681 Chenjingrun was named after him. Asteroids, sometimes called Minor planets or planetoids', are bodies—primarily of the inner Solar System —that are smaller than planets but 7681 Chenjingrun (1996 YK2 is a Main-belt Asteroid discovered on December 24, 1996 by the Beijing Schmidt CCD Asteroid Program at Xinglong
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—Dirichlet, Jutila, Linnik, and Pan—are inscribed in the marble slab behind Chen's statue (see image). Johann Peter Gustav Lejeune Dirichlet (ləʒœn diʀiçle February 13, 1805 &ndash May 5, 1859) was a German Mathematician Matti Jutila is a mathematician and professor at the University of Turku. Yuri Vladimirovich Linnik (Юрий Владимирович Линник January 8 1915 – June 30 1972 was a Russian Mathematician active in Number theory
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 Chentong 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 (in English). A Prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes. The Mathematics Genealogy Project is a web-based Database that gives an Academic genealogy based on Dissertation supervision relations
- A Chinese stamp from 1999 commemorating Chen.
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