Dieter Held (born 1936 in Berlin) is a German mathematician. He is known for discovering the Held group, one of the 26 sporadic finite simple groups. Held was a speaker at the 1962 International Congress of Mathematicians. He earned his Ph.D. in 1964 from Goethe University Frankfurt, under the supervision of Reinhold Baer. From June 1965 to October 1967 Held first was lecturer at the Australian National University till July 1966 and then lecturer at Monash University, Clayton, Victoria. After having resigned from his position at Monash University, he returned to Germany and took up a research fellowship from the Deutsche Forschungsgemeinschaft (DFG). The discovery of the Held group occurred towards the end of 1968 after he had investigated the properties of an arbitrary finite simple group
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| - ديتر هيلد (ar)
- Dieter Held (de)
- Dieter Held (en)
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| - ديتر هيلد (بالألمانية: Dieter Held) هو رياضياتي وأستاذ جامعي ألماني، ولد في 1936 في برلين في ألمانيا. (ar)
- Dieter Held (* 25. März 1936 in Berlin) ist ein deutscher Mathematiker, der sich mit endlichen Gruppen und Kombinatorik beschäftigt. Held studierte ab 1957 an der TH Darmstadt und der Johann-Wolfgang-Goethe-Universität Frankfurt am Main, an der er 1962 sein Diplom erhielt und 1964 bei Reinhold Baer promovierte (Nilpotenz- und Verstreutheitskriterien für artinsche Gruppen). Danach war er Assistent in Frankfurt und 1965/66 Lecturer an der Australian National University und 1966/67 an der Monash University. 1969 habilitierte er sich an der Johannes-Gutenberg-Universität Mainz und war dort Privatdozent, ab 1971 wissenschaftlicher Rat und Professor und ab 1974 Abteilungsvorstand und Professor. (de)
- Dieter Held (born 1936 in Berlin) is a German mathematician. He is known for discovering the Held group, one of the 26 sporadic finite simple groups. Held was a speaker at the 1962 International Congress of Mathematicians. He earned his Ph.D. in 1964 from Goethe University Frankfurt, under the supervision of Reinhold Baer. From June 1965 to October 1967 Held first was lecturer at the Australian National University till July 1966 and then lecturer at Monash University, Clayton, Victoria. After having resigned from his position at Monash University, he returned to Germany and took up a research fellowship from the Deutsche Forschungsgemeinschaft (DFG). The discovery of the Held group occurred towards the end of 1968 after he had investigated the properties of an arbitrary finite simple group (en)
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| - ديتر هيلد (بالألمانية: Dieter Held) هو رياضياتي وأستاذ جامعي ألماني، ولد في 1936 في برلين في ألمانيا. (ar)
- Dieter Held (born 1936 in Berlin) is a German mathematician. He is known for discovering the Held group, one of the 26 sporadic finite simple groups. Held was a speaker at the 1962 International Congress of Mathematicians. He earned his Ph.D. in 1964 from Goethe University Frankfurt, under the supervision of Reinhold Baer. From June 1965 to October 1967 Held first was lecturer at the Australian National University till July 1966 and then lecturer at Monash University, Clayton, Victoria. After having resigned from his position at Monash University, he returned to Germany and took up a research fellowship from the Deutsche Forschungsgemeinschaft (DFG). The discovery of the Held group occurred towards the end of 1968 after he had investigated the properties of an arbitrary finite simple group having a centralizer of an involution isomorphic to that of the centralizer of an involution in the center of a Sylow 2-subgroup of the Mathieu group M24 on 24 letters. Shortly afterwards Graham Higman and John McKay demonstrated that such a group exists, using a computer. This demonstration has not been published. There is a much later paper by Jörg Hrabe de Angelis showing the existence and uniqueness of the Held group. Up to 2001, Held was professor at the Mathematics Institute of Gutenberg University in Mainz. (en)
- Dieter Held (* 25. März 1936 in Berlin) ist ein deutscher Mathematiker, der sich mit endlichen Gruppen und Kombinatorik beschäftigt. Held studierte ab 1957 an der TH Darmstadt und der Johann-Wolfgang-Goethe-Universität Frankfurt am Main, an der er 1962 sein Diplom erhielt und 1964 bei Reinhold Baer promovierte (Nilpotenz- und Verstreutheitskriterien für artinsche Gruppen). Danach war er Assistent in Frankfurt und 1965/66 Lecturer an der Australian National University und 1966/67 an der Monash University. 1969 habilitierte er sich an der Johannes-Gutenberg-Universität Mainz und war dort Privatdozent, ab 1971 wissenschaftlicher Rat und Professor und ab 1974 Abteilungsvorstand und Professor. Held entdeckte eine Sporadische Gruppe, die nach ihm benannt ist und von Graham Higman und John McKay konstruiert wurde. 1962 hielt er einen Vortrag auf dem Internationalen Mathematikerkongress in Stockholm (Engelsche Elemente in endlichen Gruppen). Zu seinen Doktoranden zählen Gernot Stroth und Ulrich Dempwolff. (de)
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