The visitor programme represents the institute’s most important scientific activity. Each year, around 200 researchers are selected by the Scientific Council, after an application procedure. Drawn by the spontaneous and sometimes unexpected interactions that the Institute makes possible and encourages, visitors stay on average for 2.5 months.
Associated professorships provide considerable flexibility for organising scientific activities, with the possibility of inviting collaborators and organising events, and chair holders can stay for longer periods at the Institute.
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This chair was created in 2009 with the Université CergyPontoise.
Chair in Analysis
Frank Merle is studying the singularities of nonlinear partial differential equations. He is a member at Université de CergyPontoise of the CNRS "Analysis, geometry and modelization" lab (UMR 8088). His research themes arise out of hard analysis and have an important impact on mathematical physics.
This chair was created in 2006 thanks to the trust and support of Schlumberger and is dedicated to topics at the interface with high technology.
Schlumberger Chair for mathematical sciences
Ray Goldstein is the Schlumberger Professor of Complex Physical Systems in the Department of Applied Mathematics and Theoretical Physics of the University of Cambridge. He holds the Schlumberger Chair in 2017. His research interests span from statistical physics to nonlinear dynamics and geophysics, with particular emphasis on biological physics, both theoretical and experimental.
Schlumberger Chair for mathematical sciences
research director at CNRS. She was the director of the Integrative Biology and Molecular Genetics (SBIGeM) unit at CEA, in which she led the Epigenetics and Cancer lab and the Epigenetic Aspects of Cell Proliferation and Differentiation team.
Schlumberger Chair for Mathematical Sciences
Nader Masmoudi is a professor of mathematics at the Courant Institute of Mathematical Sciences at the University of New York since 2008. He moved to France to study mathematics first at Ecole Normale Superieure, and later on at université ParisDauphine, where he obtained his PhD under the supervision of PierreLouis Lions, working on asymptotic problems in fluid mechanics.
The Israel Gelfand Chair was created in 2014 in honour of the great mathematician. It symbolises scientific excellence and the sharing of knowledge, two of the Institute’s fundamental values. Israel Gelfand himself came to IHES more than ten times to carry out his research.
Israel Gelfand Chair
Spencer J. Bloch is R.M. Hutchins Distinguished Service Professor Emeritus in the Mathematics Department of the University of Chicago.
Israel Gelfand Chair
Francis Brown is a Research Fellow at the All Souls College in Oxford University since September 2015. Before that he was a CNRS Researcher at IHES.
Israel Gelfand Chair
Dennis Gaitsgory is a professor of mathematics at Harvard University, known for his research on the geometric Langlands program. He studied at Tel Aviv University under Joseph Bernstein (19901996) and received his doctorate in 1997. Prior to his 2005 appointment at Harvard he was an associate professor at the University of Chicago from 2001–2005.
Israel Gelfand Chair of mathematics
mathematician at Princeton University (USA). An analyst of partial differential equations, he works on general relativity. His current research is directed at the mathematical theory of black holes. He also works on the dynamical formation of trapped surfaces and singularities.
Israel Gelfand Chair
Samson Shatashvili is the director of the Hamilton Mathematical Institute at the Trinity College, Dublin where he holds the University Chair of Natural Philosophy (1847). He was holder of the Louis Michel Chair at IHES from 2003 to 2013.
The Louis Michel Chair for Theoretical Physics was created in 2000 in honour of Louis Michel, permanent professor in physics from 1962 to 1992.
Chaire Louis Michel
Ali H. Chamseddine is Professor at the American University of Beirut, holder of the Louis Michel Chair since 2009.
Louis Michel Chair
Eliezer Rabinovici is Leon H. and Ada G. Miller professor at the Racah Institute of Physics, The Hebrew University of Jerusalem, and holds the Louis Michel Chair at IHES since September 2015. His area of research is theoretical highenergy physics, in particular quantum field theory and string theory.
This chair was created in 2013 in honour of René Thom, a mathematician and permanent professor at IHES from 1963 to 1990. It is funded by the Simons Fund for Biology at IHES and supports a researcher and their team, working on theoretical biology.
René Thom Chair
Robert C. Penner is Visiting Researcher at the University of California, Los Angeles, Centre Distinguished Professor, Centre for the Quantum Geometry of Moduli Spaces, Aarhus University, Visiting Professor at MaxPlanck Institut für Mathematik in Bonn and at University of Tokyo.
Name  Date  Research field 

Yadin Ariel BenGurion University of the Negev 
from 17/02/2018 to 23/02/2018 
mathematics 
Kundu Sandipan Johns Hopkins University 
from 19/02/2018 to 09/03/2018 
physics Theoretical high energy physics 
Bessonov Nikolay Russian Academy of Sciences 
from 19/02/2018 to 19/05/2018 
biology Computational biology, mathematical modelling in biology, mechanics, and physics 
Gough John Aberystwyth University 
from 01/03/2018 to 13/07/2018 
mathematics Quantum Engineering Control Quantum Feedback and Network Modelling Quantum Probability and Stochastic Analysis 
Graf Gian Michele ETH Zürich, Institute of Theoretical Physics 
from 01/03/2018 to 31/05/2018 
physics 
Mourrat JeanChristophe ENS  UMPA 
from 04/03/2018 to 09/03/2018 
mathematics 
Penner Robert California Institute of Technology 
from 08/03/2018 to 30/09/2018 
mathematics Geometry, physics, biology 
Shatashvili Samson School of Mathematics 
from 21/03/2018 to 08/04/2018 
physics Theoretical and Mathematical Physics 
Brown Francis University of Oxford 
from 25/03/2018 to 16/04/2018 
mathematics 
Gaiko Valery United Institute of Informatics Problems, National Academy of Sciences of Belarus 
from 01/04/2018 to 31/05/2018 
mathematics Bifurcation Theory of Dynamical Systems 
Sevastyanov Alexey University of Aberdeen 
from 01/04/2018 to 30/06/2018 
mathematics Algebra, representation theory, mathematical physics 
Buium Alexandru University of New Mexico, Department of Math and Stat 
from 01/04/2018 to 31/05/2018 
mathematics Geometrie arithmetique 
Pandit Pranav University of Vienna 
from 01/04/2018 to 28/06/2018 
mathematics Quantum Gravity/Geometry, Homotopical Mathematics 
AGHAEI NEZHLA Desy theory 
from 02/04/2018 to 16/04/2018 
mathematics Quantizatio of Teaichmueller spaces 
Chrusciel Piotr University of Vienna 
from 04/04/2018 to 31/05/2018 
physics Relativité Générale 
Moosa Rahim University of Waterloo 
from 06/04/2018 to 01/07/2018 
mathematics Model theory (a branch of mathematical logic). Especially interactions with algebra and geometry. 
Patnaik Manish University of Alberta 
from 16/04/2018 to 16/06/2018 
mathematics Automorphic forms, infinitedimensional Lie algebras and groups 
Nisse Mounir School of Mathematics, Korea Institute for Advanced Study 
from 01/05/2018 to 31/07/2018 
mathematics Complex and Tropical Algebraic Geometry 
Sapir Mark Vanderbilt University 
from 01/05/2018 to 30/06/2018 
mathematics Combinatorial algebra 
Kaufmann Ralph Purdue University, Department of Mathematics 
from 01/05/2018 to 31/07/2018 
mathematics Algebraic Geometry, Algebraic Topology, Mathematical Physics 
Bhagwat Chandrasheel Indian Institute of Science Education and Research Pune 
from 01/05/2018 to 31/05/2018 
mathematics Representation Theory, Automorphic Forms, Special Values of Lfunctions 
Rabinovici Eliezer Racah Institute 
from 01/05/2018 to 31/07/2018 
physics High Energy Physics 
Harris Michael Institut de Mathématiques de Jussieu 
from 01/05/2018 to 31/05/2018 
mathematics 
Masmoudi Nader Courant Institute of Mathematical Science 
from 02/05/2018 to 31/07/2018 

Gaitsgory Dennis Harvard University 
from 05/05/2018 to 06/06/2018 
mathematics Geometric Representation Theory 
Zheng Weizhe Chinese Academy of Sciences 
from 01/06/2018 to 18/06/2018 
mathematics géométrie algébrique 
Chamseddine Ali American University of Beirut 
from 01/06/2018 to 31/08/2018 
physics Physique Mathématique 
Saito Takeshi School of Sciences, the University of Tokyo 
from 02/06/2018 to 01/07/2018 
mathematics Arithmetic Geometry 
Vasiu Adrian SUNY Binghamton 
from 10/06/2018 to 20/07/2018 
mathematics Arithmetic Algebraic Geometry 
Gaitsgory Dennis Harvard University 
from 10/06/2018 to 10/08/2018 
mathematics Geometric Representation Theory 
Borodin Alexei MIT 
from 18/06/2018 to 22/07/2018 
mathematics Integrable Probability 
Khesin Boris University of Toronto 
from 01/07/2018 to 31/08/2018 
mathematics infinitedimensional groups, mathematical hydrodynamics, Hamiltonian systems, integrable systems 
Brown Francis University of Oxford 
from 08/07/2018 to 01/09/2018 
mathematics 
Faraji Astaneh Amin Institute for Research in Fundamental Sciences (IPM) 
from 15/08/2018 to 15/09/2018 
physics Theoretical High Energy Physics including Classical Gravity, Quantum Field Theory, String Theory and GaugeGravity Duality, Entanglement Entropy in Field theory and Holography 
Name  Visit dates 

Deffayet Cédric
Institut d'Astrophysique de Paris 
06/11/2013  05/11/2018 deffayet(a)ihes.fr Board ON7 (26618) 
Guignard Quentin
Doctorant ENS Paris Géométrie d'Arakelov 
22/09/2014  03/09/2018 guignard(a)ihes.fr Board 1E4 (26653) 
Ren Jinbo
Doctorant Université ParisSaclay Géométrie arithmétique 
06/10/2015  31/08/2018 renjinbo(a)ihes.fr Board 1E7 (26650) 
Kropp Jérémie
IHES Biologie cellulaire et moléculaire, Biologie théorique 
01/07/2016  30/06/2018 kropp(a)ihes.fr Board 1S7 (26659) 
Grivaux Julien
Institut de Mathématiques de Marseille Géométrie Algébrique 
01/08/2016  01/08/2018 jgrivaux(a)ihes.fr Board 1N11 (26643) 
Elliott Christopher
Northwestern University Mathematical physics and derived algebraic geometry, in particular constructing mathematical models for supersymmetric field theories, and applications to geometric representation theory. 
01/09/2016  31/08/2019 celliott(a)ihes.fr Board ON6 (26617) 
LIN Jie
Institut de Mathématiques de Jussieu Valeurs spéciales de fonctions L, périodes automorphes, périodes motiviques 
01/09/2016  31/08/2018 linjie(a)ihes.fr Board OE5 (26624) 
Diemer Colin
University of Alberta Birational Geometry and Mirror Symmetry 
01/09/2016  31/08/2018 diemer(a)ihes.fr Board 1N5 (26640) 
Raoufi Aran
Université de Genève Probability theory and mathematical physics. 
01/09/2016  31/08/2018 raoufi(a)ihes.fr Board OE6 (26623) 
Kavanagh Chris
University College Dublin General Relativity, black hole perturbation theory, gravitational selfforce. 
02/09/2016  31/08/2018 kavanagh(a)ihes.fr Board 1N12 (26674) 
Morozova Nadya
UMR 3377 CNRS Theoretical Biology, Math Biology, and Systems Biology 
04/09/2016  04/09/2018 nmmorozova(a)ihes.fr Board 1E2 (26649) 
Vlassopoulos Ioannis
University of Vienna Moduli spaces of Riemann surfaces, Formal noncommutative geometry, GromovWitten theory, Loop spaces, Mirror Symmetry, topological String theory. 
01/10/2016  30/09/2018 yvlassop(a)ihes.fr Board 1E1 (26696) 
Frassek Rouven
Durham University Integrable models; Integrable structures in gauge theories; AdS/CFT; 
29/10/2016  31/10/2018 frassek(a)ihes.fr Board ON8 (26619) 
02/05/2017  31/08/2018 soibel(a)ihes.fr Board 1N14 (26678) 

Garcia Luis
University of Toronto Automorphic forms, locally symmetric spaces 
12/07/2017  09/07/2018 lgarcia(a)ihes.fr Board OS8 (26610) 
Burelle JeanPhilippe
University of Maryland Geometric structures and higher teichmueller theory. 
01/09/2017  31/08/2018 jburelle(a)ihes.fr Board 1E11 (26695) 
Su Changjian
Columbia University representation theory, algebraic geometry, geometric Langlands 
01/09/2017  31/08/2018 changjian(a)ihes.fr Board OS6 (26627) 
04/09/2017  31/08/2018 dinezza(a)ihes.fr Board OS7 (26692) 

Zhou Peng
Northwestern University I use microlocal analysis, both the algebraic and the analytic versions, to geometric problems in mirror symmetry and spectral theory. 
04/09/2017  31/08/2019 pengzhou(a)ihes.fr Board 1N14 (26678) 
Horesh Tal
Technion Applications of homogeneous dynamics to number theory Lattices in Lie groups Hyperbolic geometry 
04/09/2017  31/08/2018 horesh(a)ihes.fr Board 1S3 (26687) 
Bardet Ivan
Institut Camille Jordan mathematical physics, probabitily theory, functional analysis and operator space theory. Noncommutative functional inequalities and quantum noises 
04/09/2017  31/08/2018 bardet(a)ihes.fr Board IHP () 
11/09/2017  31/08/2019 goswami(a)ihes.fr Board OS10 (26622) 

Babadjian JeanFrançois
Université Paris Sud 
19/09/2017  31/08/2018 babadjian(a)ihes.fr Board 1S9 (26661) 
Massot Patrick
Université Paris Sud Topologie Symplectique 
25/09/2017  31/08/2018 massot(a)ihes.fr Board 1S9 (26661) 
Yao Ningyuan
Fudan University Model Theory, Definable Topological Dynamics in NIP theories, especially the ominimal theories and theory of padics. 
29/09/2017  30/09/2018 yaony(a)ihes.fr Board OE2 (26651) 
Bhattacharya Gourab
Information Retrieval Society of India Symétrie Miroir Homologique (Homological Mirror Symmetry) 
01/10/2017  30/09/2020 bhattacharya(a)ihes.fr Board 1E7 (26650) 
Terburg Cathelijne
ENS Ulm Quantum Field Theory 
10/10/2017  09/10/2020 cathelijne.terburg(a)ihes.fr 
10/10/2017  09/10/2020 trevisani(a)ihes.fr Board OS10 (26622) 

Severo Franco
IMPA 
10/10/2017  10/10/2020 severo(a)ihes.fr Board OS10 (26622) 
Kaviraj Apratim
Indian Institute of Science Theoretical physics 
26/10/2017  26/10/2019 kaviraj(a)ihes.fr Board OS6 (26627) 
Yao YiJun
Noncommutative Geometry 
15/12/2017  15/06/2018 yjyao.fudan(a)ihes.fr Board OS9 (26614) 
Koshevoy Gleb
CEMI RAS Combinatoire 
31/12/2017  31/03/2018 koshevoy(a)ihes.fr Board 1N9 (26641) 
Moosa Rahim
University of Waterloo Model theory (a branch of mathematical logic). Especially interactions with algebra and geometry. 
02/01/2018  05/04/2018 moosa(a)ihes.fr Board IHP () 
van Suijlekom Walter
Radboud University Noncommutative geometry, gauge theory, particle physics 
03/01/2018  05/05/2018 waltervs(a)ihes.fr Board 1N13 (26675) 
Capdeboscq Inna
University of Warwick Group Theory 
08/01/2018  08/04/2018 capdeboscq(a)ihes.fr Board ON9 (26620) 
Gorsky Mikhail
Max Planck Institute for Mathematics Representation theory, quantum groups, algebraic combinatorics 
08/01/2018  25/02/2018 gorsky(a)ihes.fr Board OE1 (26662) 
Sustretov Dmitry
Laboratoire Paul Painlevé, UMR CNRS 8524, Université Lille 1 Algebraic geometry, complex geometry, nonarchimedean geometry, model theory 
08/01/2018  25/02/2018 sustretov(a)ihes.fr Board OE1 (26662) 
Moschella Ugo
Universita dell'Insubria Physique mathématique 
10/01/2018  22/04/2018 moschell(a)ihes.fr Board 1E9 (26699) 
Saponov Pavel
Institute for High Energy Physics Quantum algebra, noncommutative geometry, integrable models of mathematical physics 
16/01/2018  12/02/2018 saponov(a)ihes.fr Board ON10 (26628) 
Wilms Robert
University of Mainz Arakelov Theory 
17/01/2018  17/04/2018 wilms(a)ihes.fr Board 1N10 (26642) 
Caramello Olivia
Università degli Studi dell'Insubria Topos theory and its applications 
22/01/2018  15/04/2018 olivia(a)ihes.fr 
Spindel Philippe
Université de Mons Gravitation 
29/01/2018  28/04/2018 spindel(a)ihes.fr Board 1N1 (26636) 
Moya Giusti Matias Victor
Max Planck Institute for Mathematics I study the existence of ghost classes in the cohomology of Shimura varieties and the description of their weights in the corresponding mixed Hodge structure. I also study, in particular, the middle weight property. 
01/02/2018  31/05/2018 moya(a)ihes.fr Board 1N2 (26637) 
Sokolov Vladimir
Landau Institute for Theoretical Physics Integrable models 
02/02/2018  30/04/2018 sokolov(a)ihes.fr Board 1N2 (26637) 
Nikolov Nikolay
Institute for Nuclear Research and Nuclear Energy Mathematical and Theoretical Physics 
12/02/2018  25/02/2018 nikolov(a)ihes.fr Board ON1 (26615) 
Burger Marc
ETH Zurich, Departement Mathematik Discrete subgroups of Lie groups 
12/02/2018  17/02/2018 burger(a)ihes.fr Board 1S4 (26656) 
Meineri Marco
EPFL Defect conformal field theory, Entanglement, Effective field theory for confining flux tubes 
12/02/2018  25/02/2018 meineri(a)ihes.fr Board 1E8 (26646) 
Templier Nicolas
Cornell University Number theory, automorphic forms, representation theory 
14/02/2018  16/07/2018 templier(a)ihes.fr Board ON10 (26628) 
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
Each donation to IHES counts and helps to advance research