Director since 2013
A mathematician, his area of research is algebraic geometry and arithmetic. He graduated from École Normale Supérieure de Cachan (class of 1985) and holds a PhD in Mathematical Sciences from Université Paris-Sud (1992).
Emmanuel Ullmo alternated between posts in France and abroad, including 18 months at IMPA in Brazil, two years at Princeton University in the United States and six months at Tsing-Hua University in the People’s Republic of China.
Professor at Université Paris-Sud in 2001, Emmanuel Ullmo became Director of the Department of Mathematics of Orsay and President of the Commission of Experts between 2007 and 2010. Member of the Scientific Council of the Centre Émile Borel from 2002 to 2006, he is also a member of the editorial board of Inventiones Mathematicae since 2006, being one of two editors-in-chief from 2008 to 2014.
Recently, Emmanuel Ullmo showed, in collaboration with Chris Daw and Alexander Gorodnik, that the space of homogeneous measurements on the maximum Satake compaction of a locally symmetrical space is compact. In other words, the boundary measurements of a homogeneous measurement sequence are supported on a single edge component and are homogeneous. Moreover in collaboration with Gregorio Baldi, he demonstrated the finitude of the set of maximal totally geodesic subvarieties of a ball quotient unit of the complex affine space of dimension n by a non-arithmetic network.
Guest speaker at the International Congress of Mathematicians in Beijing (2002),
Member of the Institut Universitaire de France (2003 to 2008),
Élie Cartan Prize of the Académie des Sciences de Paris (2006).