Lipót Fejér (or Leopold Fejér), was a Hungarian mathematician. Fejér was born Leopold Weiss, and changed to the Hungarian name Fejér around 1900. Fejér studied mathematics and physics in Budapest and Berlin, where he was taught by Hermann Schwarz. From 1902 to 1905 Fejér taught at the University of Pázmány Péter and from 1905 until 1911 he taught at Kolozsvár in Hungary.

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  • Lipót Fejér (or Leopold Fejér), was a Hungarian mathematician. Fejér was born Leopold Weiss, and changed to the Hungarian name Fejér around 1900. Fejér studied mathematics and physics in Budapest and Berlin, where he was taught by Hermann Schwarz. From 1902 to 1905 Fejér taught at the University of Pázmány Péter and from 1905 until 1911 he taught at Kolozsvár in Hungary. In 1911 Fejér was appointed to the chair of mathematics at the University of Budapest and he held that post until his death. He was elected corresponding member (1908), member (1930) of the Hungarian Academy of Sciences. During his period in the chair at Budapest Fejér led a highly successful Hungarian school of analysis. He was the thesis advisor of mathematicians such as John von Neumann, Paul Erdős, George Pólya and Pál Turán. Lipót Fejér is buried in Kerepesi Cemetery in Budapest. Fejér's research concentrated on harmonic analysis and, in particular, Fourier series. Fejér collaborated to produce important papers, one with Carathéodory on entire functions in 1907 and another major work with Frigyes Riesz in 1922 on conformal mappings (specifically, a short proof of the Riemann mapping theorem).
  • Leopold Fejér oder Lipót Fejér war ein ungarischer Mathematiker. Den ungarischen Namen Fejér nahm er um 1900 an. Fejér studierte ab 1897 Mathematik und Physik in Budapest und Berlin, wo er ein Schüler von Herrmann Amandus Schwarz war. 1902 wurde er Dozent in Budapest und 1905 in Kolozsvár. Von 1911 bis zu seinem Tode hatte er dann einen Lehrstuhl für Mathematik an der Loránd-Eötvös-Universität Budapest inne. Sein Forschungsschwerpunkt war die Harmonische Analysis und das Gebiet der Fourierreihen. Nach ihm benannt ist der Satz von Fejér.
  • Lipót Fejér (9 février 1880 à Pécs, Hongrie - 15 octobre 1959 à Budapest, Hongrie) est un mathématicien hongrois. Il a publié un théorème de convergence remarquable pour les séries de Fourier. Il a aussi été directeur de thèse de John von Neumann, Paul Erdős, George Pólya et Pál Turán.
  • Fejér Lipót, eredeti nevén Weisz Lipót, magyar matematikus, az MTA tagja
  • Lipót Fejér, adaptado para português Leopoldo Fejér, foi um matemático húngaro. De seu verdadeiro nome Leopold Weiss, optou, em 1900, pelo nome húngaro "Féjer". Estudou matemática e ciências físicas nas cidades de Budapeste e Berlim. Tornou-se professor e ocupou o cargo de presidente no departamento de matemática na Universidade de Budapeste, desde 1911 até ao ano da sua morte. Os seus estudos e pesquisas centraram-se na análise harmónica e em particular, séries de Fourier. Foi sepultado no Cemitério de Kerepesi, na capital húngara.
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  • Lipót Fejér
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  • George Pólya, "Some mathematicians I have known", '' Amer. Math. Monthly'' 76 (1969), 746–753
  • If you could see him in his rather Bohemian attire (which was, I suspect, carefully chosen) you would find him very eccentric. Yet he would not appear so in his natural habitat, in a certain section of Budapest middle-class society, many members of which had the same manners, if not quite the same mannerisms, as Fejér — there he would appear about half eccentric.
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  • Lipót Fejér (or Leopold Fejér), was a Hungarian mathematician. Fejér was born Leopold Weiss, and changed to the Hungarian name Fejér around 1900. Fejér studied mathematics and physics in Budapest and Berlin, where he was taught by Hermann Schwarz. From 1902 to 1905 Fejér taught at the University of Pázmány Péter and from 1905 until 1911 he taught at Kolozsvár in Hungary.
  • Leopold Fejér oder Lipót Fejér war ein ungarischer Mathematiker. Den ungarischen Namen Fejér nahm er um 1900 an. Fejér studierte ab 1897 Mathematik und Physik in Budapest und Berlin, wo er ein Schüler von Herrmann Amandus Schwarz war. 1902 wurde er Dozent in Budapest und 1905 in Kolozsvár. Von 1911 bis zu seinem Tode hatte er dann einen Lehrstuhl für Mathematik an der Loránd-Eötvös-Universität Budapest inne.
  • Lipót Fejér (9 février 1880 à Pécs, Hongrie - 15 octobre 1959 à Budapest, Hongrie) est un mathématicien hongrois. Il a publié un théorème de convergence remarquable pour les séries de Fourier. Il a aussi été directeur de thèse de John von Neumann, Paul Erdős, George Pólya et Pál Turán.
  • Fejér Lipót, eredeti nevén Weisz Lipót, magyar matematikus, az MTA tagja
  • Lipót Fejér, adaptado para português Leopoldo Fejér, foi um matemático húngaro. De seu verdadeiro nome Leopold Weiss, optou, em 1900, pelo nome húngaro "Féjer". Estudou matemática e ciências físicas nas cidades de Budapeste e Berlim. Tornou-se professor e ocupou o cargo de presidente no departamento de matemática na Universidade de Budapeste, desde 1911 até ao ano da sua morte. Os seus estudos e pesquisas centraram-se na análise harmónica e em particular, séries de Fourier.
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