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.
Triennial chairs 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 2006 thanks to the trust and support of Schlumberger and is dedicated to topics at the interface with high technology. More information.
Schlumberger Chair for Mathematical Sciences
Yves Barral works in biology, guided by the question of the links between mathematics and biology, and why these links remain confused and little explored.
Schlumberger Chair for Mathematical Sciences
Clément Mouhot is a professor of mathematics at the University of Cambridge. He is interested in the mathematical analysis of the foundations of statistical mechanics, at the interface of partial differential equations, probabilities, and functional inequalities.
The Schlumberger Chair for Mathematical Sciences
Pierre Raphael is the Herchel Smith Professor of Pure Mathematics at the Faculty of Mathematics of Cambridge.
His research on non-linear partial differential equations aims at the description of energy concentration mechanisms and singularity formation during the propagation of non-linear waves
The Schlumberger Chair for Mathematical Sciences
Robert C. Penner is Visiting Researcher at the University of California, Los Angeles.
Created in 2018 by William R. Hearst III in tribute to Mazur couple, this Chair is reserved to a Professor in Mathematics.
Gretchen and Barry Mazur Chair in 2025
Gérard Ben Arous is a professor of mathematics at the Courant Institute of Mathematical Sciences at New York University and a specialist in probability theory and its applications.
Created by Robert Penner, a mathematician and invited researcher for more than 25 years, the Alexzandria Figueroa and Robert Penner Chair enables one to receive a high-caliber mathematician. More information.
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. Since 2024, Israel Gelfand Chair is supported by Squarepoint Foundation. More information.
Israel Gelfand Chair of Mathematics, funded by the Squarepoint Foundation
Dennis Gaitsgory is a professor of mathematics at Max-Planck-Institute for Mathematics, Bonn, known for his research on the geometric Langlands program.
Israel Gelfand Chair in mathematics, funded by Squarepoint Foundation
Takeshi Saito, professor of mathematics at the University of Tokyo, is an expert in arithmetic geometry, known especially for his fundamental contributions to ramification theory of local fields and I-adic sheaves, étale cohomology, and Galois representations.
The Louis Michel Chair for Theoretical Physics was created in 2000 in honour of Louis Michel, permanent professor in physics from 1962 to 1992. More information.
Louis Michel Chair
Anton Kapustin is a theoretical physicist at the California Institute of Technology. He is interested in quantum field theory in general, with applications to particle physics and condensed matter theory.
Louis Michel Chair
Dam Thanh Son is a Professor of Physics at the University of Chicago. He is interested in a wide range of problems in theoretical physics, including the fractional quantum Hall effect, physics of the quark/gluon plasma, gauge/gravity duality, physics of cold atom, and other topics.
Created in 2013 in honour of René Thom, a mathematician and permanent professor at IHES from 1963 to 1990, this chair supports a researcher working on theoretical biology.
| Name | Date | Research field |
|---|---|---|
|
Zhang Shou-Wu Princeton University |
from 05/07/2026 to 19/07/2026 |
Mathématiques Number theory, algebraic geometry |
|
Markarian Nikita Université de Strasbourg |
from 06/07/2026 to 29/08/2026 |
Mathématiques Algebraic geometry, Algebraic topolgy |
|
Belkale Prakash University of North Carolina at Chapel Hill |
from 12/07/2026 to 12/08/2026 |
Mathématiques Algebraic Geometry and Representation theory |
|
Ferrari Frank Université Libre de Bruxelles (ULB) |
from 18/07/2026 to 30/08/2026 |
Physique Théorie quantique des champs et des cordes, gravitation quantique, supersymétrie |
|
Ferreira Dos Santos Marcelo University of California, Davis |
from 19/07/2026 to 01/08/2026 |
Physique Scattering amplitudes, string theory |
|
Benjamin Nathan University of Southern California |
from 25/07/2026 to 02/08/2026 |
Physique Theoretical physics, quantum field theory |
|
Sun Zhe University of Science and Technology of China |
from 01/08/2026 to 31/08/2026 |
Mathématiques Higher Teichmüller Theory |
|
Sageev Michah Technion - ITT |
from 01/08/2026 to 31/08/2026 |
Mathématiques Geometric Group Theory |
|
Faergeman Joakim IAS/Princeton University |
from 01/08/2026 to 07/08/2026 |
Mathématiques Mathematics, Geometric Representation Theory |
|
Wu Yunhui Yau Mathematical Sciences Center, Tsinghua University |
from 05/08/2026 to 10/08/2026 |
Mathématiques Teichmuller theory and geometry |
|
Minasyan Ashot University of Southampton |
from 10/08/2026 to 05/09/2026 |
Mathématiques Geometric and Combinatorial Group Theory |
|
Nguenang Jean Pierre Universté de Douala |
from 20/08/2026 to 30/09/2026 |
Physique Matière Condensée [Dynamique non linéaire- Transition de phase et localisation des reseaux optiques} |
|
Xu Daxin Morningside Center of Mathematics, Chinese Academy of Sciences |
from 23/08/2026 to 13/09/2026 |
Mathématiques Algebraic geometry |
|
Lele Celestin University of Dschang |
from 24/08/2026 to 19/11/2026 |
Mathématiques Algebre, logique et applications |
|
Nguyen Toan Pennsylvania State University |
from 25/08/2026 to 28/02/2027 |
Mathématiques Analysis of PDEs and Mathematical Physics |
|
Javanpeykar Ariyan Radboud |
from 28/08/2026 to 29/11/2026 |
Mathématiques Arithmetic geometry, rational points, hyperbolicity |
|
Palmirotta Guendalina Paderborn University |
from 31/08/2026 to 11/09/2026 |
Mathématiques Spectral anaylsis |
|
Guerrieri Andrea City St George's |
from 31/08/2026 to 02/10/2026 |
Physique Theoretical particle physics, S-matrix bootstrap |
|
Mouhot Clément University of Cambridge |
from 31/08/2026 to 12/09/2026 |
Mathématiques Analysis of Partial Differential Equations & Mathematical Physics |
|
Chen Mingfeng University of Wisconsin-Madison |
from 01/09/2026 to 31/08/2028 |
Mathématiques Harmonic Analysis and Analytic number theory |
|
Chan Ki Fung The Chinese University of Hong Kong |
from 01/09/2026 to 31/08/2028 |
Mathématiques Algebraic geometry, Symplectic Geometry, 2d and 3d mirror symmetry, representation theory |
|
Bouis Tess Institute for Advanced Study |
from 01/09/2026 to 30/08/2028 |
Mathématiques Motivic cohomology, K-theory, p-adic Hodge theory |
|
Torres Ethan CERN |
from 01/09/2026 to 31/08/2028 |
Mathématiques String Theory, Quantum Gravity, and Field Theory |
|
Penner Robert California Institute of Technology |
from 01/09/2026 to 31/08/2027 |
Mathématiques Geometry, physics, biology |
|
Garkusha Grigory Swansea University |
from 01/09/2026 to 20/09/2026 |
Mathématiques Algebraic K-theory, motivic homotopy theory, algebraic geometry |
|
Seraj Ali Institute for Research in Fundamental Sciences (IPM), Teheran |
from 01/09/2026 to 01/11/2026 |
Physique Gravitational waves and black hole physics. |
|
Berean-Dutcher Jonah University of British Columbia |
from 01/09/2026 to 19/12/2026 |
Physique Quantum Field Theory and Scattering Amplitudes |
|
Schwartz Richard Brown University |
from 01/09/2026 to 30/11/2026 |
Mathématiques Geometry |
|
Raphaël Pierre Université de Nice Sophia-Antipolis |
from 01/09/2026 to 30/09/2026 |
Mathématiques |
|
Bini Donato Istituto per le Applicazioni del Calcolo |
from 07/09/2026 to 18/09/2026 |
Physique General Relativity |
|
Samokhin Alexandre Bielefeld University |
from 07/09/2026 to 07/11/2026 |
Mathématiques Théorie des représentations, géométrie algébrique |
|
Goswami Souvik Indian Institute of Science Education and Research (IISER). |
from 08/09/2026 to 05/12/2026 |
Mathématiques Algebraic cycles, Hodge theory, Arakelov geometry. |
|
Saito Takeshi School of Sciences, the University of Tokyo |
from 13/09/2026 to 19/09/2026 |
Mathématiques Arithmetic Geometry |
|
Zheng Weizhe AMSS, Chinese Academy of Sciences |
from 13/09/2026 to 28/09/2026 |
Mathématiques géométrie algébrique |
|
He Yin-Chen Perimeter Institute for Theoretical Physics |
from 14/09/2026 to 28/11/2026 |
Physique Condensed matter theory and conformal field theory |
|
Mieda Yoichi Graduate School of Mathematical Sciences, the University of Tokyo |
from 15/09/2026 to 16/10/2026 |
Mathématiques Number Theory |
|
Koyama Shin-Ya Toyo University |
from 15/09/2026 to 15/11/2026 |
Mathématiques Number Theory |
|
Tsuji Takeshi Graduate School of Mathematical Sciences, The University of Tokyo |
from 19/09/2026 to 25/09/2026 |
Mathématiques Number Theory, Arithmetic Geometry |
|
Muddu Venkata Sai Saketh International Center for Theoretical Sciences (ICTS-TIFR), Bengaluru, India |
from 19/09/2026 to 03/10/2026 |
Physique Gravitational waves, Effective field theory, Tidal response, etc. |
|
Monien Hartmut University Bonn |
from 21/09/2026 to 16/10/2026 |
Mathématiques Belyi maps of sporadic groups, non-congruence subgroups |
|
Liu Bingyuan The University of Texas Rio Grande Valley |
from 28/09/2026 to 28/11/2026 |
Mathématiques Complex Geometry and Several Complex Variables |
|
Ghosh Kausik King's College London |
from 01/10/2026 to 30/09/2028 |
Conformal Field Theory |
|
Maggio Sara Bonn University, BCTP |
from 01/10/2026 to 30/09/2028 |
Mathématiques algebraic geometry, number theory |
|
Turbiner Alexander Instituto de Ciencias Nucleares, UNAM |
from 01/10/2026 to 30/11/2026 |
Physique Theoretical and Mathematical Physics |
|
Van Order Jeanine Pontifícia Universidade Católica do Rio de Janeiro |
from 01/10/2026 to 30/11/2026 |
Mathématiques Number theory, automorphic forms, arithmetic geometry |
|
Burelle Jean-Philippe Université de Sherbrooke |
from 01/10/2026 to 15/10/2026 |
Mathématiques higher Teichmüller theory, character varieties, representations of discrete groups |
|
Marshakov Andrei Igor Krichever Center for Advanced Studies, Skoltech |
from 01/10/2026 to 01/11/2026 |
Physique Mathematical Physics |
|
Castet Nathan Ecole Polytechnique |
from 01/10/2026 to 30/09/2028 |
Physique Physique théorique |
|
Todjihounde Leonard Institut de Mathematiques et de Sciences Physiques (IMSP) |
from 01/10/2026 to 31/10/2026 |
Mathématiques Structures et Analyse Géométriques |
|
Oludoun Olajumoke Bowen University, Iwo, Osun State, Nigeria |
from 05/10/2026 to 28/11/2026 |
Mathématiques Mathematical biology and epidemiology(Stochastic Modelling) |
|
Goller Leonardo SISSA |
from 19/10/2026 to 30/09/2028 |
Mathématiques Physique |
|
O'Grady Kieran Gregory Sapienza Universita' di Roma |
from 02/11/2026 to 28/11/2026 |
Mathématiques Algebraic Geometry |
|
Song Antoine California Institute of Technology |
from 02/11/2026 to 18/12/2026 |
Mathématiques Géométrie différentielle, géométrie métrique, analyse géométrique |
|
Nariman Sam Purdue University |
from 02/11/2026 to 31/01/2027 |
Mathématiques Geometric topology |
|
Bini Donato Istituto per le Applicazioni del Calcolo |
from 09/11/2026 to 20/11/2026 |
Physique General Relativity |
|
Du Wenkui Hunan University |
from 15/11/2026 to 15/01/2027 |
Mathématiques Geometric analysis (mean curvature flow, ricci flow, minimal surfaces, allen cahn equations, geometric inverse problems) |
|
Baklouti Ali Faculté des Sciences de Sfax |
from 16/11/2026 to 18/12/2026 |
Mathématiques Théorie des représentations, analyse harmonique et géométrique |
|
Kowalczyk Michal Universidad de Chile |
from 01/12/2026 to 28/02/2027 |
Mathématiques Analysis of PDEs |
|
Kadattur Vasudevan Shuddhodan University of Notre Dame |
from 18/12/2026 to 18/01/2027 |
Mathématiques Arithmetic Geometry |
|
Smith Graham Pontifícia Universidade Católica do Rio de Janeiro |
from 01/01/2027 to 31/03/2027 |
Mathématiques Geometric Analysis |
|
Sajadi Fateme University of Toronto |
from 01/01/2027 to 31/01/2027 |
Mathématiques Arithmetic Geometry, Algebraic Geometry, Number Theory |
|
Flamm Xenia Lorena Ihes |
from 01/01/2027 to 31/12/2027 |
Mathématiques Discrete subgroups of Lie groups, higher Teichmüller theory and its relation to geometric structures |
|
Goncharov Alexander Yale University |
from 01/01/2027 to 31/08/2027 |
Mathématiques Arithmetic Algebraic Geometry |
|
Garcia-Prada Oscar ICMAT- Consejo Superior de Investigaciones Cientificas |
from 04/01/2027 to 31/03/2027 |
Mathématiques Complex algebraic geometry, differential geometry and math. physics |
|
Sheshmani Artan BIMSA / and MIT (IAiFi) |
from 10/01/2027 to 07/03/2027 |
Mathématiques Algebraic Geometry |
|
Janssen Oliver École Polytechnique Fédérale de Lausanne |
from 18/01/2027 to 18/02/2027 |
Physique Quantum gravity, effective field theory, string cosmology |
|
Gu Chenlin Tsinghua University |
from 01/02/2027 to 31/05/2027 |
Mathématiques Probability, Statistical Mechanics, PDE |
|
Arinkin Dima University of Wisconsin - Madison |
from 01/02/2027 to 30/04/2027 |
Mathématiques Algebraic Geometry |
|
Esnault Hélène Freie Universität Berlin |
from 01/02/2027 to 12/03/2027 |
Mathématiques |
|
Bessonov Nikolay Institute of Problems in Mechanical Engineering, Russian Academy of Sciences |
from 01/02/2027 to 30/04/2027 |
Biologie Computational biology, mathematical modelling in biology, mechanics, and physics. |
|
Schiappa Ricardo Instituto Superior Técnico, University of Lisbon |
from 29/03/2027 to 28/05/2027 |
Mathématiques Mathematical Physics |
|
Miayoka Moussolo Brice Université Marien Ngouabi |
from 01/04/2027 to 31/05/2027 |
Mathématiques Géométrie-Arithmétique, Théorie des Nombres, Cryptographie |
|
Saito Takeshi School of Sciences, the University of Tokyo |
from 11/04/2027 to 06/06/2027 |
Mathématiques Arithmetic Geometry |
|
Soibelman Yan Kansas State University |
from 18/04/2027 to 31/08/2027 |
Mathématiques Algebraic Geometry, Symplectic Geometry, Mathematical Physics |
|
Fontanari Claudio University of Trento |
from 01/05/2027 to 15/05/2027 |
Mathématiques Algebraic geometry. Geometry of moduli spaces. Enumerative geometry. |
|
Kaimanovich Vadim University of Ottawa |
from 03/05/2027 to 31/07/2027 |
Mathématiques Dynamics and probability on geometrical and algebraic structures |
|
Valeri Daniele Università degli Studi di Roma La Sapienza |
from 01/06/2027 to 31/07/2027 |
Mathématiques Representation theory and mathematical physics |
|
Masmoudi Nader Courant Institute of Mathematical Science |
from 01/06/2027 to 31/07/2027 |
Mathématiques |
|
Li Yuezhao Leiden University |
from 02/10/2027 to 16/10/2027 |
Mathématiques Noncommutative geometry and its applications in condensed matter physics |
|
Yassemi Siamak Purdue University |
from 13/05/2028 to 30/07/2028 |
Mathématiques Representation theory of algebras |
| Name | Visit dates |
|---|---|
Gaitsgory Dennis
Chaire Israel Gelfand Max-Planck Institute for Mathematics Mathématiques Geometric Representation Theory |
29/06/2026 - 08/07/2026 gaitsgde(a)ihes.fr Board 1S5 (26657) Chaire Israel Gelfand
|
Stange Katherine
University of Colorado Boulder Mathématiques Number theory |
02/04/2026 - 11/07/2026 stange(a)ihes.fr Board 0E5 (26624) |
Kac Victor
MIT Mathématiques Algebra, Mathematical Physics |
08/06/2026 - 15/07/2026 vkac(a)ihes.fr Board 0N10 (26628) |
De Sole Alberto
Universita` di Roma La Sapienza Mathématiques Lie algebras, vertex algebras, integrable systems |
17/06/2026 - 15/07/2026 desole(a)ihes.fr Board 0E2 (26651) |
Fouquet Alexandre
Ecole Normale Supérieure de Lyon Physique Amplitudes de diffusion, analyticité et crossing |
10/02/2026 - 17/07/2026 fouquet(a)ihes.fr Board 0S11 (26663) |
Dam Thanh Son
Chaire Louis Michel University of Chicago Physique Theoretical physics |
06/07/2026 - 18/07/2026 dtson(a)ihes.fr Board 0N7 (26618) Chaire Louis Michel
|
Wei Zhaoting
East Texas A&M University Mathématiques noncommutative geometry, higher category theory, representation theory |
11/06/2026 - 18/07/2026 weiz(a)ihes.fr Board BAML1 (26700) Avec le soutien du Fonds Chern
|
Smilga Ilia
Université du Littoral - Côte d'Opale Mathématiques Discrete subgroups of Lie groups |
06/07/2026 - 21/07/2026 smilga(a)ihes.fr Board 0N8 (26619) |
Xu Yujie
Columbia University Mathématiques Number Theory, Arithmetic Geometry, and Representation Theory |
26/05/2026 - 23/07/2026 yujiexu(a)ihes.fr Board 0S9 (26614) With the support of the Agilent Technologies Foundation
|
|
Polishchuk Alexander
University of Oregon Mathématiques Algebraic geometry |
02/07/2026 - 26/07/2026 apolish(a)ihes.fr Board 1N9 (26641) |
Thaler Jesse
Titulaire Chaire Schlumberger Massachusetts Institute of Technology Physique Theoretical Particle Physics |
16/02/2026 - 31/07/2026 jthaler(a)ihes.fr Board BAML3 (26702) |
Sprung Florian
Arizona State University Mathématiques Arithmetic Geometry; Iwasawa theory; Mathematical Logic |
01/07/2026 - 31/07/2026 sprung(a)ihes.fr Board 0E4 (26686) |
Sageev Michah
Technion - ITT Mathématiques Geometric Group Theory |
05/05/2026 - 31/07/2026 sageev(a)ihes.fr |
Vasseur Alexis
The University of Texas at Austin Mathématiques Équations aux dérivées partielles, applications aux fluides. |
02/02/2026 - 31/07/2026 vasseur(a)ihes.fr Board 1E9 (26699) Avec le soutien du Fonds Huawei Technologies à l'IHES
|
Braverman Alexander
University of Toronto Mathématiques Representation theory, algebraic geometry, mathematical physics |
15/06/2026 - 05/08/2026 braverman(a)ihes.fr Board 1E1 (26696) |
|
Raskin Sam
Yale University Mathématiques Geometric Langlands program; representation theory; algebraic geometry |
12/06/2026 - 15/08/2026 raskin(a)ihes.fr Board 1N14 (26678) |
Headrick Matthew
Brandeis University Physique Mathematical physics. String theory. |
03/09/2025 - 30/08/2026 headrick(a)ihes.fr Board 0S5 (26616) |
Goncharov Alexander
Yale University Mathématiques Arithmetic Algebraic Geometry |
01/06/2026 - 30/08/2026 sasha(a)ihes.fr Board 1N4 (26638) |
Soibelman Alexander
.IHES Mathématiques Algebraic geometry, representation theory |
03/06/2026 - 31/08/2026 asoibel(a)ihes.fr |
Penner Robert
Titulaire Chaire Schlumberger California Institute of Technology Mathématiques Geometry, physics, biology |
23/05/2025 - 31/08/2026 rpenner(a)ihes.fr Board 1N9 (26641) Chaire Schlumberger pour les sciences mathématiques
|
Mazáč Dalimil
IPhT Physique Quantum field theory and its interplay with mathematics |
02/09/2025 - 31/08/2026 mazac(a)ihes.fr Board 1N12 (26674) |
|
Soibelman Yan
Kansas State University Mathématiques Algebraic Geometry, Symplectic Geometry, Mathematical Physics |
24/04/2026 - 31/08/2026 soibel(a)ihes.fr Board 1N10 (26642) |
Elkhidir Asaad
University of Edinburgh Physique Scattering Amplitudes |
03/12/2025 - 30/11/2026 elkhidir(a)ihes.fr Board BAML12 (26710) Simons program for Africa-based visiting researchers
|
Kapustin Anton
Chaire Louis Michel California Institute of Technology Physique Mathematical physics (quantum field theory and condensed matter) |
22/06/2026 - 15/12/2026 kapustin(a)ihes.fr Board 1N13 (26675) |
|
Szeftel Jérémie
CNRS-Laboratoire Jacques-Louis Lions Mathématiques |
02/09/2022 - 31/08/2027 szeftel(a)ihes.fr Board 0N9 (26620) |
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
Throughout the year, IHES organises many events open to all
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