You can help expand this article with text translated from the corresponding article in German. (February 2010) Click [show] for important translation instructions.
View a machine-translated version of the German article.
Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Ernst Sigismund Fischer]]; see its history for attribution.
You may also add the template {{Translated|de|Ernst Sigismund Fischer}} to the talk page.
For more guidance, see Wikipedia:Translation.
Ernst S. Fischer
ca. 1920
Born
(1875-07-12)12 July 1875
Vienna
Died
14 November 1954(1954-11-14) (aged 79)
Cologne
Nationality
Austrian
Alma mater
University of Vienna
Known for
Riesz–Fischer theorem Fischer's inequality
Spouse
Ellis Strauss
Children
Ursula
Scientific career
Fields
Mathematics
Institutions
University of Cologne
Thesis
Zur Theorie der Determinanten (1899)
Doctoral advisor
Franz Mertens Leopold Gegenbauer
Ernst Sigismund Fischer (12 July 1875 – 14 November 1954) was a mathematician born in Vienna, Austria. He worked alongside both Mertens and Minkowski at the Universities of Vienna and Zurich, respectively. He later became professor at the University of Erlangen, where he worked with Emmy Noether.
His main area of research was mathematical analysis, specifically orthonormal sequences of functions, which laid groundwork for the emergence of the concept of a Hilbert space.
The Riesz–Fischer theorem in Lebesgue integration is named in his honour.
He is the grandson of composer Karl Graedener.[1][2]
historian of science, and science publicist ErnstSigismundFischer (1875–1954), Austrian mathematician Fischer This disambiguation page lists articles about...
a much broader class of functions. In 1907, Frigyes Riesz and ErnstSigismundFischer independently proved that the space L2 of square Lebesgue-integrable...
Hilbert, through close interactions with a successor to Gordan, ErnstSigismundFischer. Shortly after moving to Göttingen in 1915, she proved the two...
OCLC 254452200 is a record for no. 2. ErnstSigismundFischer http://www-history.mcs.st-andrews.ac.uk/Biographies/Fischer.html. Translated from the German...
Erhard Schmidt 1929: Adolf Kneser 1930: Rudolf Rothe, Berlin 1931: ErnstSigismundFischer 1932: Hermann Weyl 1933: Richard Baldus 1934: Oskar Perron 1935:...
Finkelstein Ernst Gottfried FischerErnst Otto Fischer Franz Joseph Emil Fischer Hans Fischer Hermann Emil Fischer Karl Fischer Nikolaus Wolfgang Fischer Wilhelm...
partially in the United Kingdom until his death. He was the brother of Sigismund and Wernher von Braun. Von Braun was born in Greifswald, Pomerania, to...
Hermann Feierabend Hans Ulrich Fisch Hans Fischer Jakob Flach Annemie Fontana Sigmund Freudenberger Ernst Frick Hans Fries Pia Fries Otto Frölicher Johann...
1632 (in Swedish), Stockholm: Norstedts Pocket, ISBN 978-91-7263-790-0 Fischer, Ernst Ludwig; Kirkpatrick, John (1907), The Scots in Sweden; being a contribution...
Small golden plaquette, International Art Exhibition Dresden 1901. ErnstSigismund : . In: Hans Vollmer (ed.): Founded by Ulrich Thieme and Felix Becker...
Chikao Ōtsuka Sigismund I Richard I Otfried I (reign - 123 IC) Kaspar I (reign 123 IC - 124 IC) Julius I (reign 124 IC - 144 IC) Sigismund II (reign 144...
Martin Fischer [de] (1941–1944) Consul in Qingdao Enno Bracklo (1932–1938) Consul General in Shanghai Hermann Kriebel (1934–1937) Martin Fischer [de] (1939–1945)...
Sigismund. Also notable is the Protestant theologian and scholar Sigismund Gottlieb Schroeter (1694-1760), grandson of Heinrich Schroeter. Sigismund Gottlieb...
Breitkopf & Härtel. pp. 105–108. doi:10.13141/bjb.v1911. Scholze, Johann Sigismund (a.k.a. Sperontes) (1736). Singende Muse an der Pleiße [Singing muse at...
until 1797. Stefan Gelbhaar (born 1976), politician (Bündnis 90/Die Grünen) Ernst Ludwig von Gerlach (1795–1877), judge, politician and journalist George...
Kaas, S.K., Privy Councillor of Denmark, Chamberlain (1828–1843): Johan Sigismund von Møsting, Minister of Finance (1843–1855): Poul Christian Stemann,...
Jakob Ernst Graf von Liechtenstein-Kastelkorn (1745 – 1747) Andreas Jakob Reichsgraf von Dietrichstein (10 Sep 1747 Elected – 5 Jan 1753) Sigismund Christoph...
Wolfgang Finkelnburg Bernhard Fischer-Wasels Anton Hubert Fischer Emil Fischer Karsten Fischer (political scientist) Theobald Fischer William Roby Fletcher Tina...
Hussite Wars (1419–1434) defeated five crusades organized against them by Sigismund. During the next two centuries, 90% of the population in Bohemia and Moravia...
designed by Johann Bernhard Fischer von Erlach, donated by Prince Archbishop Johann Ernst von Thun. After the era of Ernst von Thun, the city's expansion...
Global Information
