Julius Wolff (mathematician)
| Julius Wolff | |
|---|---|
| Born |
April 18, 1882 Nijmegen |
| Died |
February 8, 1945 (aged 62) Bergen-Belsen concentration camp |
| Alma mater | Universiteit van Amsterdam |
| Thesis | Dynamen, beschouwd als duale vectoren (1908) |
| Doctoral advisor | Diederik Johannes Korteweg |
| Doctoral students | Willem Burgers, Cornelis Campagne, Gerrit Deinema, Jan Deknatel, Adrianus Dubbeld, Bastiaan Grootenboer, Albertus van Haselen, Johannes Hoekstra, Frans de Kok, Jan van Kuik, Herman Looman, Johanna Marx, Johannes Nagel, Frederik Nijhoff, Jan van de Putte, Joël Rozenberg, Johannes Thie, Cornelis Visser, Mels van Vlaardingen, Sigofred Vles, Pieter Vredenduin, Johan Wansink, Berend Wever, Wilhelm Wieringa, Egbertha Zwanenburg |
| Known for | Denjoy–Wolff theorem, boundary version of the Schwarz lemma |
| Spouse | Betsy Gersons (Tilburg 12 Jun 1889 – Bergen-Belsen 9 Mar 1945) |
| Children | Louis (died 11 May 1940 in Amsterdam), Ernst (Groningen 9 Oct 1919 – Bergen-Belsen 3 Mar 1945) |
Julius Wolff (18 April 1882 in Nijmegen – 8 February 1945 in Bergen-Belsen)[1] was a Dutch mathematician, known for the Denjoy–Wolff theorem and for his boundary version of the Schwarz lemma.[2][4]
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.[5] From 1907 to 1917 he taught at secondary and grammar schools in Meppel, Middelburg, and Amsterdam. In 1917 Wolff was appointed Privatdozent at the University of Groningen and in 1922 at the University of Utrecht. 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.[6]
Publications
- Wolff, J. (1926), "Sur l'itération des fonctions holomorphes dans une région, et dont les valeurs appartiennent à cette région", C. R. Acad. Sci., Paris, 182: 42–43
- Wolff, J. (1926), "Sur une généralisation d'un théorème de Schwarz", C. R. Acad. Sci., Paris, 182: 918–920
- Wolff, J. (1931). Fourier'sche Reihen, mit Aufgaben. Gronigen: P. Noordhoff.[7]
References
- ↑ Joods Monument - Julius Wolff
- ↑ J. A. Barrau (1948). "In Memoriam Prof. Dr. J. Wolff". Nieuw Archief voor Wiskunde. 2 (22): 113—114. with portrait[3]
- 1 2 quoted from Gerard Alberts, Amsterdam, blog post of Feb. 3, 2003 at mathforum.org
- ↑ J. G. van der Corput (1948). "Wiskunde". In Karel Frederik Proost and Jan Romein. Geestelijk Nederland 1920-1940 (PDF). II. Amsterdam: Kosmos. pp. 255—291 (263—299 in the pdf file). 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).[3]
- ↑ Julius Wolff at the Mathematics Genealogy Project
- ↑ Joods Monument - Julius Wolff and his family
- ↑ Moore, C. N. (1934). "Review: Fourier'sche Reihen, mit Aufgaben, by J. Wolff". Bull. Amer. Math. Soc. 40 (1): 19–20. doi:10.1090/s0002-9904-1934-05774-4.