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{{Short description|Norwegian mathematician (1930–2019)}} |
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'''Erik Magnus Alfsen''' (born 13 May 1930) is a Norwegian mathematician. |
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'''Erik Magnus Alfsen''' (13 May 1930 – 20 November 2019) was a Norwegian mathematician. He is the author of ''Compact Convex Sets and Boundary Integrals'', published in 1971. He was a board member of the [[Norwegian Research Council for Science and the Humanities]] (NAVF) for two years, and has also been involved in [[Nei til Atomvåpen]] and the [[Pugwash Conferences]]. He was a member of the [[Norwegian Academy of Science and Letters]], the [[Royal Norwegian Society of Sciences and Letters]] and the [[Royal Danish Academy of Sciences and Letters]].<ref name=nbl/><ref>{{cite web |title=Erik Alfsen (1930-2019) |url=https://www.mn.uio.no/math/om/aktuelt/aktuelle-saker/2019/erik-alfsen.html |publisher=UiO Matematisk institutt |accessdate=29 February 2020}}</ref> |
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==Personal life== |
==Personal life== |
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He was born in [[Oslo]] as the son of school headmaster Knut Alfsen (1897–1978) and his wife Harriet Helander Nilsen (1901–1991). He was the grandson of [[Magnus Alfsen]], and a first cousin of [[Lars Walløe]]. Both his father and grandfather were headmasters and writers of a well-known textbook in mathematics. In July 1955 he married Ellen Platou; his father-in-law was then [[Carl Platou]].<ref name=nbl>{{cite encyclopedia|year=|title=Erik Alfsen|encyclopedia=[[Norsk biografisk leksikon]]|first=Arnfinn|last=Laudal|authorlink=Arnfinn Laudal|editor=[[Knut Helle|Helle, Knut]]|publisher=Kunnskapsforlaget|location=Oslo|url=http://www.snl.no/.nbl_biografi/Erik_Alfsen/utdypning|language=Norwegian|accessdate=29 October 2009}}</ref> |
He was born in [[Oslo]] as the son of school headmaster Knut Alfsen (1897–1978) and his wife Harriet Helander Nilsen (1901–1991). He was the grandson of [[Magnus Alfsen]], and a first cousin of [[Lars Walløe]]. Both his father and grandfather were headmasters and writers of a well-known textbook in mathematics. In July 1955 he married Ellen Platou; his father-in-law was then [[Carl Platou]].<ref name=nbl>{{cite encyclopedia|year= |title=Erik Alfsen |encyclopedia=[[Norsk biografisk leksikon]] |first=Arnfinn |last=Laudal |authorlink=Arnfinn Laudal |editor=[[Knut Helle|Helle, Knut]] |publisher=Kunnskapsforlaget |location=Oslo |url=http://www.snl.no/.nbl_biografi/Erik_Alfsen/utdypning |language=Norwegian |accessdate=29 October 2009 }}{{dead link|date=December 2016 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> |
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==Career== |
==Career== |
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Erik Alfsen enrolled in the [[University of Oslo]] in 1949, studied at [[Institut Henri Poincaré]] from 1954 to 1955, and back in Oslo, he took the [[cand.real.]] degree in 1955. After two years as a [[research fellow]] in [[NAVF]], he was appointed as lecturer at the University of Oslo. After a time as visiting assistant professor |
Erik Alfsen enrolled in the [[University of Oslo]] in 1949, studied at [[Institut Henri Poincaré]] from 1954 to 1955, and back in Oslo, he took the [[cand.real.]] degree in 1955. After two years as a [[research fellow]] in [[NAVF]], he was appointed as lecturer at the University of Oslo. After a time as visiting assistant professor in [[Seattle]] from 1961 to 1962, he was promoted to [[docent]] in Oslo in 1963 and was a professor from 1975 to 2000. |
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==References== |
==References== |
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{{Persondata |
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| NAME = Alfsen, Erik |
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| ALTERNATIVE NAMES = |
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| SHORT DESCRIPTION = Mathematician |
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| DATE OF BIRTH = 13 May 1930 |
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| PLACE OF BIRTH = Oslo, Norway |
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| DATE OF DEATH = |
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| PLACE OF DEATH = |
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}} |
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{{DEFAULTSORT:Alfsen, Erik}} |
{{DEFAULTSORT:Alfsen, Erik}} |
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[[Category:Royal Norwegian Society of Sciences and Letters]] |
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[[Category:Royal Danish Academy of Sciences and Letters]] |
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[[Category:Norwegian expatriates in France]] |
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[[Category:Norwegian expatriates in the United States]] |
[[Category:Norwegian expatriates in the United States]] |
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[[Category:Artists from Oslo]] |
[[Category:Artists from Oslo]] |
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[[Category:Norwegian anti–nuclear weapons activists]] |
[[Category:Norwegian anti–nuclear weapons activists]] |
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[[Category:Norwegian mathematicians]] |
[[Category:20th-century Norwegian mathematicians]] |
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[[Category:21st-century Norwegian mathematicians]] |
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Latest revision as of 17:23, 12 January 2023
Erik Magnus Alfsen (13 May 1930 – 20 November 2019) was a Norwegian mathematician. He is the author of Compact Convex Sets and Boundary Integrals, published in 1971. He was a board member of the Norwegian Research Council for Science and the Humanities (NAVF) for two years, and has also been involved in Nei til Atomvåpen and the Pugwash Conferences. He was a member of the Norwegian Academy of Science and Letters, the Royal Norwegian Society of Sciences and Letters and the Royal Danish Academy of Sciences and Letters.[1][2]
Personal life[edit]
He was born in Oslo as the son of school headmaster Knut Alfsen (1897–1978) and his wife Harriet Helander Nilsen (1901–1991). He was the grandson of Magnus Alfsen, and a first cousin of Lars Walløe. Both his father and grandfather were headmasters and writers of a well-known textbook in mathematics. In July 1955 he married Ellen Platou; his father-in-law was then Carl Platou.[1]
Career[edit]
Erik Alfsen enrolled in the University of Oslo in 1949, studied at Institut Henri Poincaré from 1954 to 1955, and back in Oslo, he took the cand.real. degree in 1955. After two years as a research fellow in NAVF, he was appointed as lecturer at the University of Oslo. After a time as visiting assistant professor in Seattle from 1961 to 1962, he was promoted to docent in Oslo in 1963 and was a professor from 1975 to 2000.
References[edit]
- ^ a b Laudal, Arnfinn. "Erik Alfsen". In Helle, Knut (ed.). Norsk biografisk leksikon (in Norwegian). Oslo: Kunnskapsforlaget. Retrieved 29 October 2009.[permanent dead link]
- ^ "Erik Alfsen (1930-2019)". UiO Matematisk institutt. Retrieved 29 February 2020.
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