Hans Jörg Stetter (born 8 April 1930, in Munich) is a German mathematician, specializing in numerical analysis. Stetter studied at the University of Munich and then at the Technical University of Munich. For one academic year, he was an undergraduate exchange student in Fort Collins at the Colorado State College of Agriculture and Mechanic Arts, i.e. Colorado A&M (renamed, in 1957, Colorado State University), where he participated in the Putnam competition and was awarded an honorable mention. After receiving a master's degree as a qualification for teaching in secondary school, he studied the numerical analysis of partial differential equations (PDEs) with applications to fluid dynamics and received from the Technical University of Munich his promotion (Ph.D.) under Robert Max Friedrich S
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| - Hans Jörg Stetter (de)
- Hans Jörg Stetter (en)
- Hans Jörg Stetter (pt)
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| - Hans Jörg Stetter (* 8. April 1930 in München) ist ein deutscher Mathematiker, der sich mit Numerischer Analysis befasst. Stetter studierte an der Universität München und danach an der Technischen Universität München und war Austauschstudent an der Colorado State University at Fort Collins (damals Agricultural College of Colorado), wo er am Putnam-Wettbewerb teilnahm und eine ehrenvolle Erwähnung erhielt. Unter Robert Sauer wandte er sich an der TU München der Numerik partieller (hyperbolischer) Differentialgleichungen (mit Anwendungen in Hydro- und Gasdynamik) zu und promovierte auch 1956 mit einer Dissertation über numerische Gasdynamik bei Sauer (Beiträge zum Wechselwirkungsproblem in linearisierter Überschallströmung). Er war ab 1965 Professor an der Technischen Hochschule Wien (ab 197 (de)
- Hans Jörg Stetter (born 8 April 1930, in Munich) is a German mathematician, specializing in numerical analysis. Stetter studied at the University of Munich and then at the Technical University of Munich. For one academic year, he was an undergraduate exchange student in Fort Collins at the Colorado State College of Agriculture and Mechanic Arts, i.e. Colorado A&M (renamed, in 1957, Colorado State University), where he participated in the Putnam competition and was awarded an honorable mention. After receiving a master's degree as a qualification for teaching in secondary school, he studied the numerical analysis of partial differential equations (PDEs) with applications to fluid dynamics and received from the Technical University of Munich his promotion (Ph.D.) under Robert Max Friedrich S (en)
- Hans Jörg Stetter (Munique, 8 de abril de 1930) é um matemático alemão, que trabalha com análise numérica. Stetter estudou na Universidade de Munique e depois na Universidade Técnica de Munique, e esteve em um intercâmbio em Fort Collins na Universidade do Estado do Colorado (na época ainda denominada Colorado State College of Agriculture and Mechanic Arts). Obteve um doutorado na Universidade Técnica de Munique em 1956, orientado por Robert Sauer, com a tese Beiträge zum Wechselwirkungsproblem in linearisierter Überschallströmung. Foi a partir de 1965 professor da Technische Hochschule Wien (a partir de 1975 Universidade Técnica de Viena). (pt)
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| - Sebastian Finsterwalder (en)
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| - Sebastian Finsterwalder (en)
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| - Beiträge zum Wechselwirkungsproblem in linearisierter Überschallströmung (en)
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| - Hans Jörg Stetter, Halle 1974. Photographer unknown. (en)
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| - Hans Jörg Stetter (* 8. April 1930 in München) ist ein deutscher Mathematiker, der sich mit Numerischer Analysis befasst. Stetter studierte an der Universität München und danach an der Technischen Universität München und war Austauschstudent an der Colorado State University at Fort Collins (damals Agricultural College of Colorado), wo er am Putnam-Wettbewerb teilnahm und eine ehrenvolle Erwähnung erhielt. Unter Robert Sauer wandte er sich an der TU München der Numerik partieller (hyperbolischer) Differentialgleichungen (mit Anwendungen in Hydro- und Gasdynamik) zu und promovierte auch 1956 mit einer Dissertation über numerische Gasdynamik bei Sauer (Beiträge zum Wechselwirkungsproblem in linearisierter Überschallströmung). Er war ab 1965 Professor an der Technischen Hochschule Wien (ab 1975 Technische Universität). Später wandte er sich der Numerik gewöhnlicher Differentialgleichungen (ODE) zu, wofür er als Spezialist galt (Fehleranalyse, asymptotische Entwicklungen und anderes). Nach Ideen des Astronomen Pedro Elias Zadunaisky (und vorher von Lewis Fry Richardson) entwickelte er in den 1970er Jahren ein iteratives Verfahren zur Fehlerabschätzung in ODE (Defect correction method). Er befasste sich auch mit Polynom-Algebra im Grenzbereich zwischen numerischer Analyse und Computer-Algebra. 1974 war er eingeladener Sprecher auf dem Internationalen Mathematikerkongress in Vancouver (Recent Progress on the numerical treatment of ordinary differential equations). 1984 wurde er Mitglied der Leopoldina. (de)
- Hans Jörg Stetter (born 8 April 1930, in Munich) is a German mathematician, specializing in numerical analysis. Stetter studied at the University of Munich and then at the Technical University of Munich. For one academic year, he was an undergraduate exchange student in Fort Collins at the Colorado State College of Agriculture and Mechanic Arts, i.e. Colorado A&M (renamed, in 1957, Colorado State University), where he participated in the Putnam competition and was awarded an honorable mention. After receiving a master's degree as a qualification for teaching in secondary school, he studied the numerical analysis of partial differential equations (PDEs) with applications to fluid dynamics and received from the Technical University of Munich his promotion (Ph.D.) under Robert Max Friedrich Sauer with dissertation Beiträge zum Wechselwirkungsproblem in linearisierter Überschallströmung (Contributions to the interaction problem in linearized supersonic flow). Stetter became in 1965 a professor ordinarius at the Technical University of Vienna (Technische Hochschule Wien, which was renamed in 1975 the Technische Universität Wien). Later he turned to the numerical analysis of ordinar differential equations (ODEs) and specialized in error analysis and asymptotic developments, among other ODE topics. Based upon ideas published by the physicist Lewis Fry Richardson and by the astronomer Pedro E. Zadunaisky, Stetter developed in the 1970s an iterative method, now called the defect correction method, for error estimation in ODEs. He also dealt with polynomial algebra at the interface between numerical analysis and computer algebra. In 1974 Stetter was an Invited Speaker at the ICM in Vancouver. In 1984 he was elected a member of the Academy of Sciences Leopoldina. (en)
- Hans Jörg Stetter (Munique, 8 de abril de 1930) é um matemático alemão, que trabalha com análise numérica. Stetter estudou na Universidade de Munique e depois na Universidade Técnica de Munique, e esteve em um intercâmbio em Fort Collins na Universidade do Estado do Colorado (na época ainda denominada Colorado State College of Agriculture and Mechanic Arts). Obteve um doutorado na Universidade Técnica de Munique em 1956, orientado por Robert Sauer, com a tese Beiträge zum Wechselwirkungsproblem in linearisierter Überschallströmung. Foi a partir de 1965 professor da Technische Hochschule Wien (a partir de 1975 Universidade Técnica de Viena). Mais tarde voltou-se para a solução numérica de equações diferenciais ordinárias (EDO), reconhecido como um especialista (análise de erro, expansão assintótica e outros). Seguindo ideias do astrônomo (e anteriormente por Lewis Fry Richardson) desenvolveu na década de 1970 um procedimento iterativo para estimativa de erro em ODE (método da correção do defeito). Foi palestrante convidado do Congresso Internacional de Matemáticos em Vancouver (1974: Recent Progress on the numerical treatment of ordinary differential equations). Em 1984 foi eleito membro da Academia Leopoldina. (pt)
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