# Stephen Cole Kleene

> Stephen Cole Kleene was an American mathematician and logician. One of the students of Alonzo Church, Kleene, along with Rózsa Péter, Alan Turing, Emil Post, and others, is best known as a founder of the branch of mathematical logic known as recursion theory, which subsequently helped to provide the foundations of theoretical computer science. Kleene's work grounds the study of computable functions. A number of mathematical concepts are named after him: Kleene hierarchy, Kleene algebra, the Kleene star, Kleene's recursion theorem and the Kleene fixed-point theorem. He also invented regular expressions in 1951 to describe McCulloch-Pitts neural networks, and made significant contributions to the foundations of mathematical intuitionism.

*American mathematician and theoretical computer scientist (1909–1994)*

**Canonical URL:** https://fame.am/person/stephen-cole-kleene

## Identity
- **Profile type:** Academic ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Academics
- **Country:** United States
- **Born:** 1909-01-05
- **Died:** 1994-01-25
- **Status:** deceased
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 51.8 / 100
- **Momentum:** 0.0 / 100  (trend: FALLING)
- **Historical depth:** 21.1 / 100
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- **Source confidence:** 60.0 / 100
- **Profile completeness:** 70.0 / 100

## Sources
- [Wikiquote](https://uk.wikiquote.org/wiki/%D0%A1%D1%82%D1%96%D0%B2%D0%B5%D0%BD_%D0%9A%D0%BE%D1%83%D0%BB_%D0%9A%D0%BB%D1%96%D0%BD%D1%96)
- [Stephen Cole Kleene](https://af.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [ستيفن كول كلين](https://ar.wikipedia.org/wiki/%D8%B3%D8%AA%D9%8A%D9%81%D9%86_%D9%83%D9%88%D9%84_%D9%83%D9%84%D9%8A%D9%86)
- [ستيفين كولى كلينى](https://arz.wikipedia.org/wiki/%D8%B3%D8%AA%D9%8A%D9%81%D9%8A%D9%86_%D9%83%D9%88%D9%84%D9%89_%D9%83%D9%84%D9%8A%D9%86%D9%89)
- [استیون کول کلینی](https://azb.wikipedia.org/wiki/%D8%A7%D8%B3%D8%AA%DB%8C%D9%88%D9%86_%DA%A9%D9%88%D9%84_%DA%A9%D9%84%DB%8C%D9%86%DB%8C)
- [Стивън Коул Клийни](https://bg.wikipedia.org/wiki/%D0%A1%D1%82%D0%B8%D0%B2%D1%8A%D0%BD_%D0%9A%D0%BE%D1%83%D0%BB_%D0%9A%D0%BB%D0%B8%D0%B9%D0%BD%D0%B8)
- [Stephen Cole Kleene](https://bs.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Kleene](https://ca.wikipedia.org/wiki/Stephen_Kleene)
- [Stephen Cole Kleene](https://cs.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Cole Kleene](https://da.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Cole Kleene](https://de.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Στίβεν Κλέινι](https://el.wikipedia.org/wiki/%CE%A3%CF%84%CE%AF%CE%B2%CE%B5%CE%BD_%CE%9A%CE%BB%CE%AD%CE%B9%CE%BD%CE%B9)
- [Stephen Cole Kleene](https://en.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Kleene](https://eo.wikipedia.org/wiki/Stephen_Kleene)
- [Stephen Kleene](https://es.wikipedia.org/wiki/Stephen_Kleene)
- [استیون کول کلینی](https://fa.wikipedia.org/wiki/%D8%A7%D8%B3%D8%AA%DB%8C%D9%88%D9%86_%DA%A9%D9%88%D9%84_%DA%A9%D9%84%DB%8C%D9%86%DB%8C)
- [Stephen Cole Kleene](https://fr.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Cole Kleene](https://ht.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Ստիվեն Կոուլ Կլինի](https://hy.wikipedia.org/wiki/%D5%8D%D5%BF%D5%AB%D5%BE%D5%A5%D5%B6_%D4%BF%D5%B8%D5%B8%D6%82%D5%AC_%D4%BF%D5%AC%D5%AB%D5%B6%D5%AB)
- [Stephen Kleene](https://it.wikipedia.org/wiki/Stephen_Kleene)
- [スティーヴン・コール・クリーネ](https://ja.wikipedia.org/wiki/%E3%82%B9%E3%83%86%E3%82%A3%E3%83%BC%E3%83%B4%E3%83%B3%E3%83%BB%E3%82%B3%E3%83%BC%E3%83%AB%E3%83%BB%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%8D)
- [스티븐 클레이니](https://ko.wikipedia.org/wiki/%EC%8A%A4%ED%8B%B0%EB%B8%90_%ED%81%B4%EB%A0%88%EC%9D%B4%EB%8B%88)
- [Stephen Cole Kleene](https://nl.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Cole Kleene](https://pl.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Cole Kleene](https://pms.wikipedia.org/wiki/Stephen_Cole_Kleene)
- [Stephen Kleene](https://pt.wikipedia.org/wiki/Stephen_Kleene)
- [Wikidata](https://www.wikidata.org/wiki/Q335148)

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