Permanent professor since 1989
Thibault Damour is a theoretical physicist who works on Einstein's general relativity theory, cosmology and the new gravitation concepts suggested by the unification of general relativity and quantum theory defined by string theory.
Permanent professor since 2016
Hugo Duminil-Copin is a probabilist. He works on statistical mechanics models such as percolation, the Ising model, the Potts model in 2 or 3 dimensions, random walks in random environments. His research also has an impact on mathematical physics, complex analysis and combinatorics. In addition, he makes significant contributions to statistical physics. He also works on the study of stochastic models such as random walks in random environments.
Permanent professor since 1995, holder of the AXA-IHES Chair for Mathematics
Maxim Kontsevich belongs to a new generation of mathematicians who have been able to integrate in their area of work aspects of quantum theory, opening up radically new perspectives.
Permanent professor since 2000
Laurent Lafforgue works on the Langlands programme, a group of very deep conjectures which, within an arithmetic scope, link up harmonic analysis, Galois theory and algebraic geometry.
Permanent professor since 2014
Vasily Pestun is a theoretical physicist who works in the field of quantum field theory and string theory, researching the dynamics of strongly interacting supersymmetric gauge theories and conformal field theories in various dimensions.
Permanent professor since 2017
Slava Rychkov is a theoretical physicist developing approaches to strongly coupled quantum and conformal field theories which are not exactly solvable, with applications to high energy, statistical and condensed matter physics.
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).
CNRS Research Director at IHES
Ahmed Abbes mainly studies geometrical and cohomological properties of sheaves on varieties on perfect fields of characteristic p>0 or on p-adic fields, designed for applications in arithmetic and algebraic geometry.
CNRS Research Director at IHES since 2013
Cédric Deffayet works on theoretical physics, at the interface between cosmology, gravitation (general relativity and its extensions) and high energy theoretical physics, particularly superstring theory.
CNRS Research Director at IHES
Ofer Gabber continues to contribute to various topics in algebra and algebraic geometry, such as étale cohomology, logarithmic geometry, alterations of schemes and the theory of pseudo-reductive groups.
CNRS Researcher at IHES
Fanny Kassel studies geometric, dynamical, and spectral aspects of discrete subgroups of Lie groups. She is particularly interested in actions of discrete groups on homogeneous spaces, in relation to geometric structures on manifolds and to higher Teichmüller-Thurston theory.
IHES Director 1994-2013. Emeritus professor since 2013, Nicolaas H. Kuiper Chair holder
Jean-Pierre Bourguignon holds an engineering degree from École polytechnique and a PhD in mathematical sciences from University Paris 7. A differential geometer by training, he worked on the mathematical aspects of theoretical physics.
Permanent professor 1982-2015
Emeritus professor since 2015
Mikhail Gromov has totally reshaped geometry, by showing how important it was to take into account systematically and in their entirety objects less regular than those normally considered by geometers.
Léon Motchane Chair holder since 1979
Emeritus professor since 2017
After pioneering contributions on operator algebras, Alain Connes developed an ambitious programme aimed at founding a "noncommutative geometry".
Permanent professor 1964-2000
Emeritus professor since 2000
David Ruelle has proved a structure theorem about a class of polynomials which appear in the well-known Circle Theorem of Lee and Yang. Otherwise, he has worked mainly on the problem of linear response in differentiable dynamics, and its applications to nonequilibrium statistical mechanics.
CNRS Research Director at IHES
Emeritus professor since 2017
Christophe Soulé is studying Arakelov theory of arithmetic surfaces. Together with Henri Gillet (Chicago) he is defining patterns of complex algebraic varieties.
Permanent professor from 1985 to 1995
He was awarded the Fields Medal. His work centred mainly on ergodic theory and partial differential equations. He is currently in post at the Institute for Advanced Study in Princeton. Jean Bourgain was elected foreign associate of the French Academy of Sciences in April 2000.
Professor at IHES from 1970 to 1984
Pierre Deligne continued the work on algebraic geometry initiated by Alexander Grothendieck. A deep understanding of the role cohomology theories play in the study of algebraic varieties is due to him.
Professor at IHES between 1958 and 1992
Jean Dieudonné has published many works on group theory, topology and functional analysis. Éléments d’analyse, published in nine volumes between 1969 and 1982, is a very scholarly work containing many substantial exercises.
Permanent professor from 1978 to 1982
Jurg Fröhlich works on quantum field theory (including axiomatic quantum field theory, conformal field theory, and topological quantum field theory), on the precise mathematical treatment of models of statistical mechanics, on theories of phase transition, on the fractional quantum Hall effect, and on non-commutative geometry.
Permanent professor at IHES from 1958 to 1970
Alexandre Grothendieck set the framework for modern algebraic geometry, which is now universally adopted. His work was further amplified by Pierre Deligne, originally his disciple, who was recruited to IHES at the age of 26, and is now established at the Institute for Advanced Studies (IAS) in Princeton.
Professor at IHES from 1982 to 1989
Oscar Lanford studied how - irreversible - macroscopic evolutions can be deduced from certain - reversible - microscopic models.
Professor at IHES between 1962 and 1992
Louis Michel worked on the symmetry of the laws of nature, on particle theory and on the unification of fundamental interactions. He then focused on crystallography.
Permanent professor from 2000 to 2013
A physicist, he works at the interface of gauge theories and string theory and on modern mathematical physics, thereby enriching all these areas of research.
Permanent professor from 1963 to 1990
He covered a huge area of science: starting from topology, the field of mathematics that looks at forms and deformations, he created the “mathematics of morphogenesis”, putting forward models for biology and human sciences. His proposals, often grouped under the name of “catastrophe theory”, were sometimes controversial, but elicited considerable interest from outside the scientific community. He spent the rest of his scientific life studying theoretical biology, but mainly Aristotelian philosophy.
Permanent professor from 1974 to 1997
Dennis Sullivan, an American mathematician, split his research activities between the US and France for years. A topologist, specialised in dynamics, he had a rare gift for promoting exchanges among researchers and motivating them to reach new heights in their thinking
The Institute offers outstanding scientists a place where they can focus exclusively on their research
200 mathematicians and physicists from all over the world invited each year
The Institute organises numerous events to celebrate its 60th Anniversary
IHES visitors are selected by the Scientific Council every year in June and December
Find many references in the library, Publications Mathématiques and preprints online catalogs
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