Julius Wolff (mathematician)

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Julius Wolff (18 April 1882, Nijmegen – 8 February 1945, Bergen-Belsen)[1] was a Dutch mathematician, known for the Denjoy–Wolff theorem and for his boundary version of the Schwarz lemma.[2]

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.[3] 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," with offices at The Hague.[4]

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 Reihe, mit Aufgaben. Gronigen: P. Noordhoff. [5]

References

  1. ↑ Joods Monument - Julius Wolff
  2. ↑ 'In Memoriam Prof. Dr. J. Wolff', J. A. Barrau, Nieuw Archief voor Wiskunde second series XXII, 113-114 with portrait 'Wiskunde', J. G. van der Corput, in: Geestelijk Nederland 1920-1940, K. F. Proost and J. Romein (eds.), Amsterdam: Kosmos, 1948 Vol. II 255-291. This article has a separate one-page-section on the importance of J. Wolff, and a portrait. — quoted from Gerard Alberts, Amsterdam, Feb. 3, 2003
  3. ↑ Julius Wolff at the Mathematics Genealogy Project
  4. ↑ Joods Monument - Julius Wolff and his family
  5. ↑ Moore, C. N. (1934). "Review: Fourier'sche Reihe, mit Aufgaben, by J. Wolff". Bull. Amer. Math. Soc. 40 (1): 19–20. 
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