Arnaud Chéritat, born on June 7, 1975, focuses his professional research on complex dynamics and the geometric properties of Julia sets. As a mathematician based in France, he contributes to the field through both academic inquiry and his role as a director of research at the Institut de Mathématiques de Toulouse.
Academic Background
Chéritat completed his early academic training in France, receiving a licenciate in mathematics from the École Normale Supérieure in 1995. He followed this with a diplôme d'études approfondies in pure mathematics at the University of Paris-Sud in 1996 and a master's degree in pure and applied mathematics and informatics from the École Normale Supérieure in 1998. He finished his doctoral studies under Adrien Douady at the University of Paris-Sud in 2001 and achieved his habilitation at the University of Toulouse in 2008.
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His professional career began at the University of Toulouse, where he served as a maître de conférences between 2002 and 2007. In 2007, he transitioned to the Institut de Mathématiques de Toulouse, where he currently serves as a Director of Research. He maintains membership in the American Mathematical Society.
Research Contributions
His publications include collaborative studies on dynamical systems. Notable works include "Siegel disks with smooth boundaries" in 2004, written with Artur Avila and Xavier Buff, and "Upper bound for the size of quadratic Siegel disks" from the same year. In 2006, he co-authored "The Brjuno function continuously estimates the size of quadratic Siegel disks" with Xavier Buff.
Recognition
In 2006, the French Academy of Sciences awarded him the Leconte Prize. He participated as an invited speaker at the International Congress of Mathematicians in 2010. By 2013, he was recognized as a Fellow of the American Mathematical Society, having been named one of the inaugural fellows of the organization in 2012.
Fast facts
- Born: June 7, 1975
- Citizenship: France
- Field: Dynamical systems
- Primary Employer: Institut de Mathématiques de Toulouse
- Award: Leconte Prize
- AMS Status: Fellow since 2013
Questions readers ask
What is the primary focus of Arnaud Chéritat's research?
His work concentrates on complex dynamics and the shape of Julia sets.
Where did Chéritat complete his doctoral studies?
He defended his doctoral thesis at the University of Paris-Sud in 2001.
Achievements
- Leconte Prize
- Held posts at Institut de Mathématiques de Toulouse
- Fields: dynamical system


