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Steven Paul Kerckhoff (born 1952) is a professor of mathematics at Stanford University, who works on hyperbolic 3-manifolds and Teichmüller spaces. He received his Ph.D. in mathematics from Princeton University in 1978, under the direction of William Thurston. Among his most famous results is his resolution of the Nielsen realization problem, a 1932 conjecture by Jakob Nielsen. Along with William J. Floyd, he wrote large parts of Thurston's influential Princeton lecture notes, and he is well known for his work (some of which is joint with Craig Hodgson) in exploring and clarifying Thurston's hyperbolic Dehn surgery.

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  • Steven Paul Kerckhoff (* 1952 in Madison (Wisconsin)) ist ein US-amerikanischer Mathematiker, der sich mit hyperbolischen Mannigfaltigkeiten und Teichmüllertheorie befasst. Kerckhoff wurde 1978 bei William Thurston an der Princeton University promoviert (The asymptotic geometry of Teichmüller space). 1978/79 war er am Institute for Advanced Study und danach an der University of California, Berkeley. Er ist Professor an der Stanford University. 1983 bewies er eine Vermutung von Jakob Nielsen (Nielsen Realisierungs Problem). Sie fragt danach, ob eine endliche Untergruppe der Abbildungsklassengruppe einer Fläche als Isometriegruppe einer hyperbolischen Metrik auf der Fläche realisiert werden kann. Kerckhoff bewies, dass dies möglich ist. Ein vorheriger Beweisversuch von Saul Kravetz von 1959 stellte sich in den 1970er Jahren als fehlerhaft heraus. Er schrieb mit William Floyd einen großen Teil der einflussreichen Vorlesungen (1978/79) von Thurston Geometry and Topology of 3-Manifolds in Princeton nieder. Er befasste sich mit dem Ausbau und dem Erbringen strenger Beweise im Thurston-Programm, zum Beispiel bezüglich der hyperbolischen Dehn-Chirurgie von Thurston. Er war Invited Speaker auf dem Internationalen Mathematikerkongress 1983 in Warschau. 1984 wurde er Forschungsstipendiat der Alfred P. Sloan Foundation (Sloan Research Fellow). Er ist auch in der Mathematikpädagogik für Schulen in Kalifornien aktiv. Zu seinen Doktoranden gehört Michael Wolf. (de)
  • Steven Paul Kerckhoff (né en 1952) est professeur de mathématiques à l'Université Stanford, qui travaille sur les variétés hyperboliques 3- et les Espace de Teichmüller. (fr)
  • Steven Paul Kerckhoff (born 1952) is a professor of mathematics at Stanford University, who works on hyperbolic 3-manifolds and Teichmüller spaces. He received his Ph.D. in mathematics from Princeton University in 1978, under the direction of William Thurston. Among his most famous results is his resolution of the Nielsen realization problem, a 1932 conjecture by Jakob Nielsen. Along with William J. Floyd, he wrote large parts of Thurston's influential Princeton lecture notes, and he is well known for his work (some of which is joint with Craig Hodgson) in exploring and clarifying Thurston's hyperbolic Dehn surgery. Kerckhoff is one of four academics from Stanford University, along with Gunnar Carlsson, Ralph Cohen, and R. James Milgram, who were instrumental in developing the controversial California Mathematics Academic Content Standards for the State Board of Education. (en)
  • Steven Paul Kerckhoff (Madison, Wisconsin, 1952) é um matemático estadunidense, qua trabalha com espaço de Teichmüller. Kerckhoff obteve um doutorado em 1978 na Universidade de Princeton, orientado por William Thurston, com a tese The asymptotic geometry of Teichmüller space. Em 1978/79 esteve no Instituto de Estudos Avançados de Princeton e depois na Universidade da Califórnia em Berkeley. É professor da Universidade Stanford. Foi palestrante convidado do Congresso Internacional de Matemáticos em Varsóvia (1983). Dentre seus doutorandos consta . (pt)
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  • Steven Paul Kerckhoff (né en 1952) est professeur de mathématiques à l'Université Stanford, qui travaille sur les variétés hyperboliques 3- et les Espace de Teichmüller. (fr)
  • Steven Paul Kerckhoff (Madison, Wisconsin, 1952) é um matemático estadunidense, qua trabalha com espaço de Teichmüller. Kerckhoff obteve um doutorado em 1978 na Universidade de Princeton, orientado por William Thurston, com a tese The asymptotic geometry of Teichmüller space. Em 1978/79 esteve no Instituto de Estudos Avançados de Princeton e depois na Universidade da Califórnia em Berkeley. É professor da Universidade Stanford. Foi palestrante convidado do Congresso Internacional de Matemáticos em Varsóvia (1983). Dentre seus doutorandos consta . (pt)
  • Steven Paul Kerckhoff (* 1952 in Madison (Wisconsin)) ist ein US-amerikanischer Mathematiker, der sich mit hyperbolischen Mannigfaltigkeiten und Teichmüllertheorie befasst. Kerckhoff wurde 1978 bei William Thurston an der Princeton University promoviert (The asymptotic geometry of Teichmüller space). 1978/79 war er am Institute for Advanced Study und danach an der University of California, Berkeley. Er ist Professor an der Stanford University. Er ist auch in der Mathematikpädagogik für Schulen in Kalifornien aktiv. Zu seinen Doktoranden gehört Michael Wolf. (de)
  • Steven Paul Kerckhoff (born 1952) is a professor of mathematics at Stanford University, who works on hyperbolic 3-manifolds and Teichmüller spaces. He received his Ph.D. in mathematics from Princeton University in 1978, under the direction of William Thurston. Among his most famous results is his resolution of the Nielsen realization problem, a 1932 conjecture by Jakob Nielsen. Along with William J. Floyd, he wrote large parts of Thurston's influential Princeton lecture notes, and he is well known for his work (some of which is joint with Craig Hodgson) in exploring and clarifying Thurston's hyperbolic Dehn surgery. (en)
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  • Steven Kerckhoff (de)
  • Steven Kerckhoff (fr)
  • Steven Kerckhoff (pt)
  • Steven Kerckhoff (en)
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