Xavier Buff (born 16 December 1971) is a French mathematician, specializing in dynamical systems. Buff received in 1996 his Ph.D. (promotion) from the University of Paris-Sud under Adrien Douady with thesis Points fixe de renormalisation. As a postdoc he was in the academic year 1997–1998 the H. C. Wang Assistant Professor at Cornell University. At the Paul Sabatier University (Université Toulouse III) he became in 1998 a maître de conférences, achieved in 2006 his habilitation with habilitation thesis Disques de Siegel et ensembles de Julia d'aire strictement positive, and became in 2008 a full professor.
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| - Xavier Buff (de)
- Xavier Buff (fr)
- Xavier Buff (pt)
- Xavier Buff (en)
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| - Xavier Buff est un mathématicien français né le 16 décembre 1971. (fr)
- Xavier Buff (* 16. Dezember 1971) ist ein französischer Mathematiker, der sich mit Dynamischen Systemen befasst. Buff wurde 1996 bei Adrien Douady an der Universität Paris-Süd promoviert (Points fixe de renormalisation). Als Post-Doktorand war er 1997/98 H. C. Wang Assistant Professor an der Cornell University. Ab 1998 war er Maitre de conférences an der Universität Toulouse (Paul Sabatier), habilitierte sich dort 2006 (Disques de Siegel et ensembles de Julia d'aire strictement positive) und war dort ab 2008 Professor. (de)
- Xavier Buff (born 16 December 1971) is a French mathematician, specializing in dynamical systems. Buff received in 1996 his Ph.D. (promotion) from the University of Paris-Sud under Adrien Douady with thesis Points fixe de renormalisation. As a postdoc he was in the academic year 1997–1998 the H. C. Wang Assistant Professor at Cornell University. At the Paul Sabatier University (Université Toulouse III) he became in 1998 a maître de conférences, achieved in 2006 his habilitation with habilitation thesis Disques de Siegel et ensembles de Julia d'aire strictement positive, and became in 2008 a full professor. (en)
- Xavier Buff (16 de dezembro de 1971) é um matemático francês, especialista em sistemas dinâmicos. Buff obteve um doutorado em 1996 na Universidade Paris-Sul, orientado por Adrien Douady, com a tese Points fixe de renormalisation. No pós-doutorado foi no ano acadêmico 1997–1998 H. C. Wang Assistant Professor na Universidade Cornell. Na Universidade Paul Sabatier (Université Toulouse III) foi em 1998 maître de conférences, obteve a habilitação em 2006 com a tese Disques de Siegel et ensembles de Julia d'aire strictement positive, tornando-se em 2008 professor. (pt)
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| - Xavier Buff, Oberwolfach 2008 (en)
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| - Xavier Buff (* 16. Dezember 1971) ist ein französischer Mathematiker, der sich mit Dynamischen Systemen befasst. Buff wurde 1996 bei Adrien Douady an der Universität Paris-Süd promoviert (Points fixe de renormalisation). Als Post-Doktorand war er 1997/98 H. C. Wang Assistant Professor an der Cornell University. Ab 1998 war er Maitre de conférences an der Universität Toulouse (Paul Sabatier), habilitierte sich dort 2006 (Disques de Siegel et ensembles de Julia d'aire strictement positive) und war dort ab 2008 Professor. 2010 war er Invited Speaker auf dem Internationalen Mathematikerkongress in Hyderabad (Quadratic Julia Sets with Positive Area, mit Arnaud Chéritat). 2006 erhielt er den Prix Leconte der Academie des Sciences mit Arnaud Chéritat für ihre gemeinsame Arbeit zu Julia-Mengen mit positivem Maß (sie bewiesen die Existenz quadratischer Polynome, deren Julia-Menge positives Lebesgue-Maß hat). Mit Chéritat und Pascale Roesch erhielt er 2008 einen European Research Council Starting Grant. 2009 wurde er Mitglied des Institut Universitaire de France. (de)
- Xavier Buff est un mathématicien français né le 16 décembre 1971. (fr)
- Xavier Buff (born 16 December 1971) is a French mathematician, specializing in dynamical systems. Buff received in 1996 his Ph.D. (promotion) from the University of Paris-Sud under Adrien Douady with thesis Points fixe de renormalisation. As a postdoc he was in the academic year 1997–1998 the H. C. Wang Assistant Professor at Cornell University. At the Paul Sabatier University (Université Toulouse III) he became in 1998 a maître de conférences, achieved in 2006 his habilitation with habilitation thesis Disques de Siegel et ensembles de Julia d'aire strictement positive, and became in 2008 a full professor. In 2010 he was an invited speaker at the International Congress of Mathematicians in Hyderabad and gave a talk Quadratic Julia Sets with Positive Area based on joint work with Arnaud Chéritat. In 2006 Buff and Chéritat received the Prix Leconte of the French Academy of Sciences for their collaborative work on Julia sets with positive mass; they proved the existence of quadratic polynomials that have positive Lebesgue measure. In 2008 Buff, Chéritat, and Pascale Roesch received a Young Researchers grant from Agence Nationale de la Recherche. In 2009 Buff became a member of the Institut Universitaire de France. (en)
- Xavier Buff (16 de dezembro de 1971) é um matemático francês, especialista em sistemas dinâmicos. Buff obteve um doutorado em 1996 na Universidade Paris-Sul, orientado por Adrien Douady, com a tese Points fixe de renormalisation. No pós-doutorado foi no ano acadêmico 1997–1998 H. C. Wang Assistant Professor na Universidade Cornell. Na Universidade Paul Sabatier (Université Toulouse III) foi em 1998 maître de conférences, obteve a habilitação em 2006 com a tese Disques de Siegel et ensembles de Julia d'aire strictement positive, tornando-se em 2008 professor. Foi palestrante convidado do Congresso Internacional de Matemáticos em Hyderabad (2010: Quadratic Julia Sets with Positive Area), baseada em trabalho conjunto com Arnaud Chéritat. Recebeu com Chéritat o Prêmio Leconte de 2006. (pt)
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