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Xavier Buff
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Xavier Buff (* 16. Dezember 1971) ist ein franzΓΆsischer Mathematiker, der sich mit Dynamischen Systemen befasst.
Buff wurde 1996 bei Adrien Douady an der UniversitΓ€t Paris-SΓΌd 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 confΓ©rences an der UniversitΓ€t 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 Gastredner auf dem Internationalen Mathematikerkongress in Hyderabad (Quadratic Julia Sets with Positive Area, mit Arnaud ChΓ©ritat). 2006 erhielt er den Prix Leconte der Academie des Sciences mit Arnaud ChΓ©ritat fΓΌr ihre gemeinsame Arbeit zu Julia-Mengen mit positivem MaΓ (sie bewiesen die Existenz quadratischer Polynome, deren Julia-Menge positives Lebesgue-MaΓ hat). Mit ChΓ©ritat und Pascale Roesch erhielt er 2008 einen European Research Council Starting Grant. 2009 wurde er Mitglied des Institut Universitaire de France.
Contents
β’ Schriften
β’ Literatur
β’ Weblinks
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Schriften
β’ mit A. ChΓ©ritat: Quadratic Julia sets with positive area, Annals of Mathematics, Band 176, 2012, S. 673β746
β’ mit A. ChΓ©ritat: The Yoccoz Function Continuously Estimates the Size of Siegel Disks, Annals of Mathematics, Band 164, 2006, S. 265β312.
β’ The Brjuno function continuously estimates the size of quadratic Siegel disks, Annals of Mathematics, Band 163, 2006, S. 1β48
β’ mit A. ChΓ©ritat: Upper Bound for the Size of Quadratic Siegel Disks, Inventiones Mathematicae, Band 156, 2004, S. 1β24
β’ mit C. Henriksen: Julia sets in parameter spaces, Communications in Mathematical Physics, Band 220, 2001, S. 333β375.
β’ mit A. ChΓ©ritat: Ensembles de Julia quadratiques de mesure de Lebesgue strictement positive, C. R. Acad. Sci. Paris, Band 341, 2005, S. 669β674.
β’ mit Leila Schneps, JΓ©rΓ΄me Fehrenbach, Pierre Lochak, Pierre Vogel: Moduli Spaces of Curves, Mapping Class Groups and Field Theory, AMS and SMF 2003
Literatur
β’ Jean-Christophe Yoccoz: Ensembles de Julia de mesure positive et disques de Siegel des polynΓ΄mes quadratiques, dβaprΓ¨s X. Buff et A. ChΓ©ritat, SΓ©minaire Bourbaki 966, 2006
Weblinks