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Julius Wolff (mathematician)

April 16, 2024

Not to be confused with Julius Wolff (writer).

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]

Julius Wolff
Julius Wolff 1882 - 1945
Born(1882-04-18)18 April 1882
Nijmegen, Netherlands
Died8 February 1945(1945-02-08) (aged 62)
Bergen-Belsen concentration camp, Nazi Germany
Alma materUniversiteit van Amsterdam
Known forDenjoy–Wolff theorem, boundary version of the Schwarz lemma
SpouseBetsy Gersons (Tilburg 12 June 1889 – Bergen-Belsen 9 March 1945)
ChildrenLouis (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 advisorDiederik Johannes Korteweg

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 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.[8]

Publications edit

  • Wolff, J. (1926), "Sur l'itération des fonctions holomorphes dans une région, et dont les valeurs appartiennent à cette région", C. R. Acad. Sci., 182, Paris: 42–43
  • Wolff, J. (1926), "Sur une généralisation d'un théorème de Schwarz", C. R. Acad. Sci., 182, Paris: 918–920
  • Wolff, J. (1931). Fourier'sche Reihen, mit Aufgaben. Groningen: P. Noordhoff.[9]
  • van Aardenne-Ehrenfest, T.; Wolff, J. (1943–1944). "Über die Grenzen der einfachzusammenhängenden Gebiete". Commentarii Mathematici Helvetici. 16: 321–323. doi:10.1007/BF02568584. S2CID 124837715.

Gallery edit

  •  
    Julius Wolff, mathematics teacher in secondary education at Middelburg, Zeeland, 1911
  •  
    Wolff: De nieuwe onderzoekingen op het gebied der algebraïsche oppervlakken. Rede, Inaugural lecture (Translated title: New research in algebraic surfaces), University of Amsterdam 1916
  •  
    Wolff: Complexe getallenstelsels. Rede, Inaugural lecture (Translated title: Complex number systems), University of Groningen, 1917
  •  
    Wolff: Over het subjectieve in de wiskunde. Rede, Inaugural lecture (Translated title: About the subjective in mathematics), University of Utrecht 1922
  •  
    Julius Wolff (rightmost in top row) at the International Congress of Mathematicians, Zürich 1932
  •  
    Julius Wolff, date unknown
  •  
    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
  •  
    Address of Julius Wolff and his family, Stadhouderslaan 51, Utrecht, 2019.
  •  
    "Julius Wolff - 18.04.1882 - 62 jaar". National Holocaust Names Memorial, Amsterdam, 2023.

References edit

  1. ^ Joods Monument - Julius Wolff
  2. ^ a b quoted from Gerard Alberts, Amsterdam, blog post of Feb. 3, 2003 at mathforum.org
  3. ^ J. A. Barrau (1947). "In Memoriam Prof. Dr. J. Wolff". Nieuw Archief voor Wiskunde. 2 (22): 113–114. with portrait[2]
  4. ^ J. G. van der Corput (1948). "Wiskunde". In Karel Frederik Proost and Jan Romein (ed.). Geestelijk Nederland 1920-1940 (PDF). Vol. 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).[2]
  5. ^ a b (PDF). Archived from the original (PDF) on 10 March 2018. Retrieved 9 March 2018.
  6. ^ "Holocaust Survivors and Victims Database -- Registry of Names of the Bergen-Belsen Concentration Camp Prisoners".
  7. ^ Julius Wolff at the Mathematics Genealogy Project
  8. ^ Joods Monument - Julius Wolff and his family
  9. ^ 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.
 
Wikimedia Commons has media related to Julius Wolff (mathematician).

April 16, 2024
julius, wolff, mathematician, confused, with, julius, wolff, writer, julius, wolff, april, 1882, february, 1945, dutch, jewish, mathematician, known, denjoy, wolff, theorem, boundary, version, schwarz, lemma, with, family, arrested, utrecht, nazi, occupation, . Not to be confused with Julius Wolff writer 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 Julius WolffJulius Wolff 1882 1945Born 1882 04 18 18 April 1882Nijmegen NetherlandsDied8 February 1945 1945 02 08 aged 62 Bergen Belsen concentration camp Nazi GermanyAlma materUniversiteit van AmsterdamKnown forDenjoy Wolff theorem boundary version of the Schwarz lemmaSpouseBetsy Gersons Tilburg 12 June 1889 Bergen Belsen 9 March 1945 ChildrenLouis died 11 May 1940 in Amsterdam Ernst Groningen 9 October 1919 Bergen Belsen 3 March 1945 Scientific careerThesisDynamen beschouwd als duale vectoren 1908 Doctoral advisorDiederik Johannes KortewegWolff 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 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 8 Publications editWolff J 1926 Sur l iteration des fonctions holomorphes dans une region et dont les valeurs appartiennent a cette region C R Acad Sci 182 Paris 42 43 Wolff J 1926 Sur une generalisation d un theoreme de Schwarz C R Acad Sci 182 Paris 918 920 Wolff J 1931 Fourier sche Reihen mit Aufgaben Groningen P Noordhoff 9 van Aardenne Ehrenfest T Wolff J 1943 1944 Uber die Grenzen der einfachzusammenhangenden Gebiete Commentarii Mathematici Helvetici 16 321 323 doi 10 1007 BF02568584 S2CID 124837715 Gallery edit nbsp Julius Wolff mathematics teacher in secondary education at Middelburg Zeeland 1911 nbsp Wolff De nieuwe onderzoekingen op het gebied der algebraische oppervlakken Rede Inaugural lecture Translated title New research in algebraic surfaces University of Amsterdam 1916 nbsp Wolff Complexe getallenstelsels Rede Inaugural lecture Translated title Complex number systems University of Groningen 1917 nbsp Wolff Over het subjectieve in de wiskunde Rede Inaugural lecture Translated title About the subjective in mathematics University of Utrecht 1922 nbsp Julius Wolff rightmost in top row at the International Congress of Mathematicians Zurich 1932 nbsp Julius Wolff date unknown nbsp 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 nbsp Address of Julius Wolff and his family Stadhouderslaan 51 Utrecht 2019 nbsp Julius Wolff 18 04 1882 62 jaar National Holocaust Names Memorial Amsterdam 2023 References edit Joods Monument Julius Wolff a b quoted from Gerard Alberts Amsterdam blog post of Feb 3 2003 at mathforum org J A Barrau 1947 In Memoriam Prof Dr J Wolff Nieuw Archief voor Wiskunde 2 22 113 114 with portrait 2 J G van der Corput 1948 Wiskunde In Karel Frederik Proost and Jan Romein ed Geestelijk Nederland 1920 1940 PDF Vol 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 2 a b J A van Maanen Julius Wolff 1882 1945 Biography in Dutch PDF Archived from the original PDF on 10 March 2018 Retrieved 9 March 2018 Holocaust Survivors and Victims Database Registry of Names of the Bergen Belsen Concentration Camp Prisoners 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 nbsp Wikimedia Commons has media related to Julius Wolff mathematician Retrieved from https en wikipedia org w index php title Julius Wolff mathematician amp oldid 1151804172, wikipedia, wiki, book, books, library,

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