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{{Short description|Chinese number theorist}}
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{{Chinese name|[[Chen (surname)|Chen]]}}
{{Use dmy dates|date=October 2019}}
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{{family name hatnote|[[Chen (surname)|Chen]]|lang=Chinese}}
{{Infobox scientist
{{Infobox scientist
|name = Chen Jingrun
|name = Chen Jingrun
|image = Chen Jingrun.jpg
|image = Chen Jingrun.jpg
|birth_date = May 22, 1933
|birth_date = 22 May 1933
|birth_place = [[Fuzhou]], [[Fujian]], China
|birth_place = [[Fuzhou]], [[Fujian]], China
|death_date = {{death date and age|1996|3|19|1933|5|22}}
|death_date = {{death date and age|df=yes|1996|3|19|1933|5|22}}
|death_place =
|death_place = Beijing, China
|field = [[Mathematics]]
|field = [[Mathematics]]
|alma_mater = [[Chinese Academy of Sciences]]<br>[[Xiamen University]]
|alma_mater = [[Chinese Academy of Sciences]]<br />[[Xiamen University]]
|doctoral_advisor = [[Hua Luogeng]]
|doctoral_advisor = [[Hua Luogeng]]
|known_for = [[Chen's theorem]], [[Chen prime]]
|known_for = [[Chen's theorem]], [[Chen prime]]
|module = {{Chinese|child=yes|t=陳景潤|s=陈景润|p=Chén Jǐngrùn|w=Chʻên² Ching³-jun⁴}}
|module = {{Chinese|child=yes|t=陳景潤|s=陈景润|p=Chén Jǐngrùn|w=Chʻen<sup>2</sup> Ching<sup>3</sup>-jun<sup>4</sup>|mi={{IPAc-cmn|ch|en|2|-|j|ing|3|.|r|un|4}}|buc=Dìng Gīng-nông}}
}}
}}
'''Chen Jingrun''' ({{zh|s=陈景润}}; May 22, 1933 – March 19, 1996) was a Chinese [[mathematician]] who made significant contributions to [[number theory]], including [[Chen's theorem]] and the [[Chen prime]].
'''Chen Jingrun''' ({{zh|s=陳景潤}}; 22 May 1933 – 19 March 1996), also known as '''Jing-Run Chen''', was a Chinese [[mathematician]] who made significant contributions to [[number theory]], including [[Chen's theorem]] and the [[Chen prime]].


==Life and career==
==Life and career==
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]].
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]].


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 [[mathematical proof|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&nbsp;=&nbsp;23&nbsp;+&nbsp;7·11.<ref name="Song2014">{{cite book|last=Song|first=Yuwu|title=Biographical Dictionary of the People's Republic of China|url=https://books.google.com/books?id=DGbyzKLVh30C&pg=PA35|year=2014|publisher=McFarland|isbn=978-1-4766-0298-1|page=35}}</ref> Despite being persecuted during the [[Cultural Revolution]], he expanded his proof in the 1970s.<ref>{{Cite web|url=http://www.chinawriter.com.cn/n1/2017/1218/c405173-29711930.html|title=徐迟报告文学的突破、经验及警示意义|author=Shi Xingze 石兴泽|date=2017-12-18|publisher=China Writers' Association|language=zh|url-status=live|archive-url=|archive-date=|access-date=2019-10-04}}</ref>
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 [[mathematical proof|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&nbsp;=&nbsp;23&nbsp;+&nbsp;7·11.<ref name="Song2014">{{cite book|last=Song|first=Yuwu|title=Biographical Dictionary of the People's Republic of China|url=https://books.google.com/books?id=DGbyzKLVh30C&pg=PA35|year=2014|publisher=McFarland|isbn=978-1-4766-0298-1|page=35}}</ref> Despite being persecuted during the [[Cultural Revolution]], he expanded his proof in the 1970s.<ref>{{Cite web|url=http://www.chinawriter.com.cn/n1/2017/1218/c405173-29711930.html|title=徐迟报告文学的突破、经验及警示意义|author=Shi Xingze 石兴泽|date=18 December 2017|publisher=China Writers' Association|language=zh|url-status=live|archive-url=https://web.archive.org/web/20191026035456/http://www.chinawriter.com.cn/n1/2017/1218/c405173-29711930.html |archive-date=26 October 2019 |access-date=4 October 2019}}</ref>

After the end of the Cultural Revolution, [[Xu Chi]] wrote a biography of Chen entitled ''Goldbach's Conjecture'' ({{lang|zh|哥德巴赫猜想}}). First published in ''[[People's Literature]]'' in January 1978, it was reprinted on the ''[[People's Daily]]'' a month later and became a national sensation. Chen became a household name in China and received a sackful of love letters from all over the country within two months.<ref>{{Cite web|url=http://mjlsh.usc.cuhk.edu.hk/Book.aspx?cid=4&tid=3821|title=揭开诗人徐迟跳楼之谜|author=Zhang Shouren 张守仁|date=December 2016|publisher=Chinese University of Hong Kong|language=zh|url-status=live|archive-url=https://web.archive.org/web/20201107175338/http://mjlsh.usc.cuhk.edu.hk/Book.aspx?cid=4&tid=3821 |archive-date=7 November 2020 |access-date=4 October 2019}}</ref>

Chen died of complications of [[pneumonia]] on 19 March 1996, at the age of 63 years.<ref>{{Cite journal|url=https://thejns.org/focus/view/journals/neurosurg-focus/41/1/article-pE11.xml|doi = 10.3171/2016.2.FOCUS1595|title = Chen Jingrun, China's famous mathematician: Devastated by brain injuries on the doorstep to solving a fundamental mathematical puzzle|year = 2016|last1 = Lei|first1 = Ting|last2 = Belykh|first2 = Evgenii|last3 = Dru|first3 = Alexander B.|last4 = Yagmurlu|first4 = Kaan|last5 = Elhadi|first5 = Ali M.|last6 = Nakaji|first6 = Peter|last7 = Preul|first7 = Mark C.|journal = Neurosurgical Focus|volume = 41|issue = 1|pages = E11|pmid = 27364253|doi-access = free}}</ref>


==Legacy==
==Legacy==
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*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.
*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.
*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.
*"Fundamental Number Theory"


==References==
==References==
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==External links==
==External links==
*{{MathGenealogy|id=25269}}
*{{MathGenealogy|id=25269}}
*[https://web.archive.org/web/20040401112756/http://www.math.ac.cn/Chinese/B/Chenjr/Chenjr.htm Chen's home page]{{zh icon}} at the [https://web.archive.org/web/20040401122341/http://www.math.ac.cn/English/2/History.htm Chinese Institute of Mathematics].
*[https://web.archive.org/web/20040401112756/http://www.math.ac.cn/Chinese/B/Chenjr/Chenjr.htm Chen's home page]{{in lang|zh}} at the [https://web.archive.org/web/20040401122341/http://www.math.ac.cn/English/2/History.htm Chinese Institute of Mathematics].
*A Chinese [http://www.fh-friedberg.de/users/boergens/marken/beispiele/chen.htm stamp] from 1999 commemorating Chen.


{{Members of the Chinese Academy of Sciences (1980)}}
{{Authority control}}
{{Authority control}}


{{DEFAULTSORT:Chen, Jingrun}}
{{DEFAULTSORT:Chen, Jingrun}}

[[Category:1933 births]]
[[Category:1933 births]]
[[Category:1996 deaths]]
[[Category:1996 deaths]]
[[Category:20th-century Chinese mathematicians]]
[[Category:20th-century Chinese mathematicians]]
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[[Category:Academic staff of Guizhou Nationalities University]]
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[[Category:Academic staff of Henan University]]
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[[Category:Academic staff of Huazhong University of Science and Technology]]
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[[Category:Academic staff of Qingdao University]]
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[[Category:Academic staff of Xiamen University]]
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[[Category:Academic staff of Fujian Normal University]]
[[Category:Delegates to the 4th National People's Congress]]
[[Category:Delegates to the 5th National People's Congress]]
[[Category:Delegates to the 6th National People's Congress]]
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[[Category:Educators from Fujian]]
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[[Category:Mathematicians from Fujian]]
[[Category:Members of the Chinese Academy of Sciences]]
[[Category:Members of the Chinese Academy of Sciences]]
[[Category:Number theorists]]
[[Category:Number theorists]]
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[[Category:Educators from Fujian]]
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[[Category:Guizhou Nationalities University faculty]]
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[[Category:Henan University faculty]]
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[[Category:Xiamen University faculty]]
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[[Category:Qingdao University faculty]]
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[[Category:Huazhong University of Science and Technology faculty]]
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[[Category:Fujian Normal University faculty]]
[[Category:People from Fuzhou]]
[[Category:People from Fuzhou]]
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[[Category:Mathematicians from Fujian]]
[[Category:Xiamen University alumni]]
[[Category:Xiamen University alumni]]

Latest revision as of 09:48, 4 January 2025

In this Chinese name, the family name is Chen.
Chen Jingrun
Born22 May 1933
Fuzhou, Fujian, China
Died19 March 1996(1996-03-19) (aged 62)
Beijing, China
Alma materChinese Academy of Sciences
Xiamen University
Known forChen's theorem, Chen prime
Scientific career
FieldsMathematics
Doctoral advisorHua Luogeng
Chinese name
Traditional Chinese陳景潤
Simplified Chinese陈景润
Transcriptions
Standard Mandarin
Hanyu PinyinChén Jǐngrùn
Wade–GilesChʻen2 Ching3-jun4
IPA[ʈʂʰə̌n tɕìŋ.ɻwə̂n]
Eastern Min
Fuzhou BUCDìng Gīng-nông

Chen Jingrun (Chinese: 陳景潤; 22 May 1933 – 19 March 1996), also known as Jing-Run Chen, was a Chinese mathematician who made significant contributions to number theory, including Chen's theorem and the Chen prime.

Life and career

[edit]

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.

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.[1] Despite being persecuted during the Cultural Revolution, he expanded his proof in the 1970s.[2]

After the end of the Cultural Revolution, Xu Chi wrote a biography of Chen entitled Goldbach's Conjecture (哥德巴赫猜想). First published in People's Literature in January 1978, it was reprinted on the People's Daily a month later and became a national sensation. Chen became a household name in China and received a sackful of love letters from all over the country within two months.[3]

Chen died of complications of pneumonia on 19 March 1996, at the age of 63 years.[4]

Legacy

[edit]
Chen's statue at Xiamen University, China.

The asteroid 7681 Chenjingrun, discovered in 1996, was named after him.[1]

In 1999, China issued an 80-cent postage stamp, titled The Best Result of Goldbach Conjecture, with a silhouette of Chen and the inequality:[1]

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

[edit]
  • 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.
  • "Fundamental Number Theory"

References

[edit]
  1. ^ a b c Song, Yuwu (2014). Biographical Dictionary of the People's Republic of China. McFarland. p. 35. ISBN 978-1-4766-0298-1.
  2. ^ Shi Xingze 石兴泽 (18 December 2017). "徐迟报告文学的突破、经验及警示意义" (in Chinese). China Writers' Association. Archived from the original on 26 October 2019. Retrieved 4 October 2019.
  3. ^ Zhang Shouren 张守仁 (December 2016). "揭开诗人徐迟跳楼之谜" (in Chinese). Chinese University of Hong Kong. Archived from the original on 7 November 2020. Retrieved 4 October 2019.
  4. ^ Lei, Ting; Belykh, Evgenii; Dru, Alexander B.; Yagmurlu, Kaan; Elhadi, Ali M.; Nakaji, Peter; Preul, Mark C. (2016). "Chen Jingrun, China's famous mathematician: Devastated by brain injuries on the doorstep to solving a fundamental mathematical puzzle". Neurosurgical Focus. 41 (1): E11. doi:10.3171/2016.2.FOCUS1595. PMID 27364253.
[edit]
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