Julius Wolff (mathematician)
Julius Wolff | |
|---|---|
| File:Julius Wolff, Dutch mathematician, 1882 - 1945.jpg Julius Wolff 1882 - 1945 | |
| Born | 18 April 1882 Nijmegen, Netherlands |
| Died | 8 February 1945 (aged 62) |
| Alma mater | Universiteit van Amsterdam |
| Known for | Denjoy–Wolff theorem, boundary version of the Schwarz lemma |
| Spouse | Betsy Gersons (Tilburg 12 June 1889 – Bergen-Belsen 9 March 1945) |
| Children | Louis (died 11 May 1940 in Amsterdam), Ernst (Groningen 9 October 1919 – Bergen-Belsen 3 March 1945) |
| Scientific career | |
| Thesis | Dynamen, beschouwd als duale vectoren (1908) |
| Doctoral advisor | Diederik Johannes Korteweg |
Julius Wolff (18 April 1882 – 8 February 1945)[1] was a Dutch-Jewish mathematician, known for the Denjoy–Wolff theorem and for his boundary version of the Schwarz lemma.[3][4][5] With his family he was arrested in Utrecht by the Nazi occupation forces of the Netherlands on 8 March 1943 and transported to the Bergen-Belsen concentration camp on 13 September 1944, where he died of epidemic typhus on 8 February 1945, shortly before the camp was liberated.[5][6]
Wolff studied mathematics and physics at the University of Amsterdam, where he earned his doctorate in 1908 under Korteweg with thesis Dynamen, beschouwd als duale vectoren.[7] From 1907 to 1917 he taught at secondary and grammar schools in Meppel, Middelburg, and Amsterdam. In 1917 Wolff was appointed Professor of differential calculus, theory of functions and higher algebra at the University of Groningen and in 1922 at Utrecht University. He was also a statistical advisor for the life insurance company (or co-operative distributive society) "Eigen Hulp," (a predecessor of AEGON) with offices at The Hague.[8]
Publications
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Gallery
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Julius Wolff, mathematics teacher in secondary education at Middelburg, Zeeland, 1911
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Wolff: De nieuwe onderzoekingen op het gebied der algebraïsche oppervlakken. Rede, Inaugural lecture (Translated title: New research in algebraic surfaces), University of Amsterdam 1916
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Wolff: Complexe getallenstelsels. Rede, Inaugural lecture (Translated title: Complex number systems), University of Groningen, 1917
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Wolff: Over het subjectieve in de wiskunde. Rede, Inaugural lecture (Translated title: About the subjective in mathematics), University of Utrecht 1922
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Julius Wolff (rightmost in top row) at the International Congress of Mathematicians, Zürich 1932
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Julius Wolff, date unknown
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Stolpersteine (brass plates on concrete to commemorate the Jewish victims of the Holocaust) in front of the domicile of Julius Wolff and his family, Stadhouderslaan 51, Utrecht, 2019
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Address of Julius Wolff and his family, Stadhouderslaan 51, Utrecht, 2019.
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"Julius Wolff - 18.04.1882 - 62 jaar". National Holocaust Names Memorial, Amsterdam, 2023.
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_-_Betsy_Wolff-Gersons_-_Ernst_Wolff_-_Stolpersteine_-_Stadhouderslaan_51,_Utrecht_-_2019.jpg){kind=link}
_-_Former_address_-_Stadhouderslaan_51,_Utrecht_-_2019.jpg){kind=link}
References
[edit | edit source]- ^ Joods Monument - Julius Wolff
- ^ a b quoted from Gerard Alberts, Amsterdam, blog post of Feb. 3, 2003 at mathforum.org
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). with portrait[2]
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). This article has a separate one-page-section on the importance of J. Wolff (p.279-280 in the pdf file), and a portrait (p.275).[2]
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- ^ Julius Wolff at the Mathematics Genealogy Project
- ^ Joods Monument - Julius Wolff and his family
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