Invited researchers

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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The Gretchen and Barry Mazur Chair

Created in 2018 by William R. Hearst III in tribute to Mazur couple, this Chair is reserved to an Associate Professor in Mathematics.

  • Alexander Goncharov, mathematician

    Gretchen et Barry Mazur Chair

    Professor of mathematics at Yale University, he is particularly interested in several areas of Mathematics and Mathematical Physics, such as Hodge theory and motives, representation theory, Higher Teichmuller theory, quantization of moduli spaces of local systems and scattering amplitudes.



The Schlumberger Chair for Mathematical Sciences

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.

  • Gilles Blanchard, mathematician

    Schlumberger Chair

    Gilles Blanchard is statistician and professor at the Institute of Mathematics at the University of Potsdam, Germany. After studying at the École Normale Supérieure in Paris and receiving his doctorate from Paris-Nord University, he became a researcher at the CRNS.
    In 2002, he moved to Berlin where he was a researcher, first at the Fraunhofer Institute and then at the Weierstrass Institute.

  • Nader Masmoudi, mathematician

    Schlumberger Chair

    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 Paris-Dauphine, where he obtained his PhD under the supervision of Pierre-Louis Lions, working on asymptotic problems in fluid mechanics.



Israel Gelfand Chair in mathematics

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.

  • Dennis Gaitsgory, mathematician

    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 (1990-1996) 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.

  • Sergiu Klainerman, mathematician

    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.

  • Samson Shatashvili - IHES

    Samson Shatashvili, physicist

    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.



Louis Michel Chair for Theoretical Physics

The Louis Michel Chair for Theoretical Physics was created in 2000 in honour of Louis Michel, permanent professor in physics from 1962 to 1992.

  • Eliezer Rabinovici - IHES

    Eliezer Rabinovici, physicist

    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 high-energy physics, in particular quantum field theory and string theory.



René Thom Chair

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.

  • Robert C. Penner

    Robert C. Penner, mathematician

    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.



The Université de Cergy-Pontoise – IHES Chair in Analysis

This chair was created in 2009 with the Université Cergy-Pontoise.

  • Frank Merle -IHES

    Frank Merle, mathematician

    Chair in Analysis

    Frank Merle is studying the singularities of non-linear partial differential equations. He is a member at Université de Cergy-Pontoise 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.­­

Name Date Research field
Gunningham Sam
University of Edinburgh
from 24/01/2019
to 30/01/2019
Mathématiques
Nikiforova Victoria
Institute of Plant Physiology RAS
from 25/01/2019
to 25/03/2019
Biologie
Riemenschneider Gunnar
Istituto Nazionale di Fisica Nucleare - Sezione di Torino, Università degli studi di Torino
from 27/01/2019
to 09/02/2019
Physique
Rettegno Piero
Università degli Studi di Torino
from 27/01/2019
to 09/02/2019
Physique
Moschella Ugo
Universita dell'Insubria
from 28/01/2019
to 29/03/2019
Physique
Ulcigrai Corinna
University of Bristol
from 29/01/2019
to 17/02/2019
Mathématiques
Yu Jianqing
School of Mathematical Sciences, University of Science and Technology of China
from 31/01/2019
to 30/04/2019
Mathématiques
Bessonov Nikolay
Institute of Problems in Mechanical Engineering, Russian Academy of Sciences
from 01/02/2019
to 28/02/2019
Biologie
Nesharim Erez
University of York
from 01/02/2019
to 28/02/2019
Mathématiques
Golyshev Vasily
Institute for Information Transmission Problems RAS
from 01/02/2019
to 01/03/2019
Mathématiques
Nagar Alessandro
Centro Fermi and INFN, Sezione di Torino
from 03/02/2019
to 07/02/2019
Physique
Goncharov Alexander
Yale University
from 03/02/2019
to 05/03/2019
Mathématiques
Spindel Philippe
Université de Mons
from 04/02/2019
to 03/05/2019
Physique
Daw Christopher
University of Reading
from 09/02/2019
to 15/02/2019
Mathématiques
Bessonov Nikolay
Institute of Problems in Mechanical Engineering, Russian Academy of Sciences
from 01/03/2019
to 31/03/2019
Biologie
Bertolin Cristiana
Università degli studi di Torino -Dipartimento di Matematica
from 01/03/2019
to 30/04/2019
Mathématiques
Bini Donato
Istituto per le Applicazioni del Calcolo "M. Picone", CNR
from 01/03/2019
to 11/04/2019
Physique
Guéritaud François
CNRS / Université de Lille
from 01/03/2019
to 31/05/2019
Mathématiques
Soibelman Alexander
University of Southern California
from 01/03/2019
to 30/04/2019
Mathématiques
Große-Klönne Elmar
Humboldt Universität zu Berlin
from 04/03/2019
to 30/03/2019
Mathématiques
Lawton Sean
George Mason University
from 10/03/2019
to 23/03/2019
Mathématiques
Dilão Rui
Instituto Superior Tecnico, University of Lisbon
from 11/03/2019
to 11/05/2019
Biologie
Yassemi Siamak
University of Tehran
from 11/03/2019
to 10/04/2019
Mathématiques
Koshevoi Gleb
CEMI RAS
from 15/03/2019
to 15/05/2019
Mathématiques
Gaitsgory Dennis
Harvard University
from 25/03/2019
to 25/06/2019
Mathématiques
Alexandrov Alexander
IBS Center for Geometry and Physics
from 29/03/2019
to 01/05/2019
Physique
Greenstein Jacob
University of California Riverside
from 01/04/2019
to 01/06/2019
Mathématiques
Odesskii Alexander
Brock University
from 15/04/2019
to 16/06/2019
Mathématiques
Talalaev Dmitry
Universit'e d'Etat de Moscou
from 15/04/2019
to 15/05/2019
Mathématiques
Soibelman Yan
Deprtment of Mathematics Knsas State University
from 27/04/2019
to 31/08/2019
Mathématiques
Klainerman Sergiu
Princeton University
from 01/05/2019
to 31/07/2019
Mathématiques
Grigorchuk Rostislav
Texas A&M University
from 02/05/2019
to 31/05/2019
Mathématiques
Nachtergaele Bruno
University of California, Davis
from 12/05/2019
to 25/05/2019
Mathématiques
Dymarsky Anatoly
University of Kentucky
from 12/05/2019
to 26/05/2019
Physique
Esnault Hélène
FU Berlin, Mathematik
from 13/05/2019
to 31/07/2019
Mathématiques
Carbone Lisa
Lisa Carbone
from 15/05/2019
to 30/06/2019
Mathématiques
Penner Robert
California Institute of Technology
from 15/05/2019
to 14/10/2019
Mathématiques
Kac Victor
MIT
from 15/05/2019
to 30/09/2019
Mathématiques
Feingold Alex
Binghamton University (State University of New York)
from 20/05/2019
to 01/06/2019
Mathématiques
Valeri Daniele
Yau Mathematical Sciences Center, Tsinghua University
from 25/05/2019
to 22/06/2019
Mathématiques
Vilenkin Alexander
Tufts University
from 26/05/2019
to 06/07/2019
Physique
Goncharov Alexander
Yale University
from 28/05/2019
to 30/07/2019
Mathématiques
Cherkis Sergey
University of Arizona
from 29/05/2019
to 29/07/2019
Physique
Muscalu Camil
Cornell University
from 30/05/2019
to 30/06/2019
Mathématiques
Tsymbaliuk Oleksandr
Yale University, Department of Mathematics
from 01/06/2019
to 31/07/2019
Mathématiques
De Sole Alberto
University of Rome, La Sapienza
from 01/06/2019
to 31/07/2019
Mathématiques
Kapustin Anton
California Institute of Technology
from 16/06/2019
to 29/06/2019
Physique
Clarke Patrick
Drexel University
from 17/06/2019
to 20/09/2019
Mathématiques
Wegner Sven-Ake
University of Wuppertal
from 01/07/2019
to 01/09/2019
Mathématiques
Morel Fabien
LMU (Ludwig-Maximilians-Universität München)
from 01/07/2019
to 31/07/2019
Mathématiques
Besser Amnon
Department of Mathematics, Ben Gurion University of the Negev
from 01/07/2019
to 21/07/2019
Mathématiques
Berenstein Arkady
University of Oregon
from 01/07/2019
to 31/07/2019
Mathématiques
Retakh Vladimir
Rutgers University
from 01/07/2019
to 31/07/2019
Mathématiques
Sarig Omri
Weizmann Institute of Science
from 01/07/2019
to 15/08/2019
Mathématiques
Polishchuk Alexander
University of Oregon
from 01/07/2019
to 31/07/2019
Mathématiques
Virdol Cristian
Yonsei University
from 01/07/2019
to 31/08/2019
Mathématiques
Hoppe Jens
from 01/07/2019
to 30/09/2019
Autre
Horesh Tal
IHES
from 13/07/2019
to 31/08/2019
Mathématiques
Zhang Xin
University of Illinois at Urbana-Champaign
from 13/07/2019
to 31/08/2020
Mathématiques
Wei Zhaoting
Kent State University at Geauga
from 18/07/2019
to 17/08/2019
Mathématiques
Bini Donato
Istituto per le Applicazioni del Calcolo "M. Picone", CNR
from 01/09/2019
to 16/09/2019
Physique
Wakimoto Minoru
Kyushu University
from 01/09/2019
to 30/09/2019
Mathématiques
Tabuada Goncalo
Massachusetts Institute of Technology (MIT)
from 01/09/2019
to 29/02/2020
Mathématiques
Stojić Martina
University of Zagreb, Faculty of Science, Department of Mathematics
from 01/10/2019
to 31/12/2019
Mathématiques
Skoda Zoran
University of Zadar, Croatia
from 01/10/2019
to 31/12/2019
Mathématiques
Penner Robert
California Institute of Technology
from 15/10/2019
to 14/05/2020
Mathématiques
Merkulov Sergei
University of Luxembourg
from 19/10/2019
to 18/11/2019
Mathématiques
Kiselev Arthemy
Johann Bernoulli Institute for Mathematics and Computer Science
from 01/11/2019
to 31/12/2019
Mathématiques
Bini Donato
Istituto per le Applicazioni del Calcolo "M. Picone", CNR
from 01/11/2019
to 13/11/2019
Physique
Hu Yongquan
Morningside Center of Mathematics, Academy of Mathematics and Systems Science, CAS
from 01/11/2019
to 31/12/2019
Mathématiques
Nang Philibert
ENS-Gabon
from 01/12/2019
to 31/01/2020
Mathématiques
Braverman Alexander
University of Toronto
from 01/03/2020
to 01/07/2020
Mathématiques
Goncharov Alexander
Yale UNiversity
from 01/06/2020
to 28/08/2020
Mathématiques
Kim Inkang
KIAS
from 01/06/2020
to 31/07/2020
Mathématiques
Name Visit dates
Georgieva Penka
IMJ-PRG, Sorbonne Université


01/10/2018 - 31/01/2019

georgieva(a)ihes.fr
Board 1N11 (26643)
Hamidine Ibrahima
Université Abdou Moumouni de Niamey


04/12/2018 - 31/01/2019

hamidine(a)ihes.fr
Board 0E2 (26651)
Klainerman Sergiu
Princeton University


03/01/2019 - 02/02/2019

seri(a)ihes.fr
Board 0E1 (26662)
Chiarellotto Bruno
Univ. degli studi PADOVA


02/01/2019 - 04/02/2019

chiarellotto(a)ihes.fr
Board 1E3 (26644)
Bahraini Alireza
Dept. of Mathematical Sciences- Sharif University of Technology


09/01/2019 - 07/02/2019

bahraini(a)ihes.fr
Board BAML2 (26642)
Anderes Ethan
University of California at Davis


15/12/2018 - 28/02/2019

anderes(a)ihes.fr
Samokhine Alexandre
Université de Düsseldorf


01/10/2018 - 28/02/2019

samokhin(a)ihes.fr
Board 1N10 (26642)
Macri Emanuele
Northeastern University


01/09/2018 - 28/02/2019

macri(a)ihes.fr
Board 1N13 (26675)
Nawata Satoshi
Fudan University


07/01/2019 - 28/02/2019

nawata(a)ihes.fr
Board BAML3 (26643)
Hoppe Jens



02/10/2018 - 31/03/2019

jhoppe(a)ihes.fr
Board 0N1 (26615)
Sustretov Dmitry
Max Planck Institute for Mathematics


07/01/2019 - 01/04/2019

sustretov(a)ihes.fr
Board 0N8 (26619)
Siksek Samir
University of Warwick


14/01/2019 - 14/04/2019

siksek(a)ihes.fr
Board 0N10 (26628)
Horesh Tal
IHES


01/09/2018 - 14/04/2019

horesh(a)ihes.fr
Board 1S3 (26687)
Zhang Xin
University of Illinois at Urbana-Champaign


01/09/2018 - 14/04/2019

xzhang(a)ihes.fr
Board 0S4 (26647)
BONANDRINI Céline
Université Paris-Sud 11


10/10/2018 - 30/04/2019

bonandrini(a)ihes.fr
Board 1E7 (26650)
Kousvos Stefanos
University of Crete


04/01/2019 - 30/06/2019

skousvos(a)ihes.fr
Nikiforova Vasilisa
INR RAS


01/10/2018 - 30/06/2019

nikiforovavas(a)ihes.fr
Board 1S10 (26665)
Enriquez Nathanaël
Paris-Sud


18/09/2018 - 31/07/2019

enriquez(a)ihes.fr
Board 1S4 (26656)
Guignard Quentin
ENS Paris


22/09/2014 - 04/08/2019

guignard(a)ihes.fr
Board 1E7 (26650)
Peng Zhou
Northwestern University


04/09/2017 - 31/08/2019

pengzhou(a)ihes.fr
Board 1N14 (26678)
Goswami Subhajit
The University of Chicago


11/09/2017 - 31/08/2019

goswami(a)ihes.fr
Board 0S10 (26621)
Glorieux Olivier
Université du Luxembourg


15/10/2018 - 31/08/2019

glorieux(a)ihes.fr
Board 1N2 (26637)
Blanchard Gilles
Universitat Potsdam, Institut fur Mathematik


31/10/2018 - 31/08/2019

blanchard(a)ihes.fr
Board 0E5 (26624)
Elliott Christopher
Northwestern University


01/09/2016 - 31/08/2019

celliott(a)ihes.fr
Burelle Jean-Philippe
University of Maryland


01/09/2017 - 31/08/2019

jburelle(a)ihes.fr
Board 1N2 (26637)
05/09/2018 - 04/09/2019

morozova(a)ihes.fr
Board 1E2 (26649)
Eynard Bertrand
IPHT / CEA / Saclay


01/10/2018 - 30/09/2019

eynard(a)ihes.fr
Board 1N4 (26638)
Apratim Kaviraj
Indian Institute of Science


26/10/2017 - 26/10/2019

kaviraj(a)ihes.fr
Board 0S6 (26627)
Schaposnik Massolo Fidel Ivan
Universidad Nacional de La Plata


03/08/2018 - 31/07/2020

fidels(a)ihes.fr
Board 0E4 (26686)
Yue WANG
Department of Applied Mathematics, University of Washington


01/09/2018 - 31/08/2020

yuewang(a)ihes.fr
Board 1S7 (26659)
Rodriguez Pierre-François
University of California, Los Angeles


01/09/2018 - 31/08/2020

rodriguez(a)ihes.fr
Board 0S9 (26614)
Ren Jie
Max Planck Institute for Mathematics


31/08/2018 - 31/08/2020

jren(a)ihes.fr
Board 0N9 (26620)
Bhattacharya Gourab
Univ. Paris-Sud


10/10/2017 - 30/09/2020

bhattacharya(a)ihes.fr
Board 1E7 (26650)
Trevisani Emilio
Perimeter Institute


10/10/2017 - 09/10/2020

trevisani(a)ihes.fr
Board 0S10 (26621)
Severo Franco
IMPA


10/10/2017 - 10/10/2020

severo(a)ihes.fr
Board 0S10 (26621)
Vokes Kate
University of Warwick


16/01/2019 - 15/01/2021

vokes(a)ihes.fr
Board 1N4 (26638)
12/06/2018 - 31/08/2021

oulamara(a)ihes.fr
Board 0S10 (26621)
Bah Amadou
Paris Saclay


01/10/2018 - 31/08/2021

a.bah(a)ihes.fr
Board 1E7 (26650)
Blayac Pierre-Louis
Paris-Sud


10/09/2018 - 31/08/2021

blayac(a)ihes.fr
Board 1E11 (26695)
Isachenkov Mikhail
Weizmann Institute of Science


01/10/2018 - 30/09/2021

isachenkov(a)ihes.fr
Board 0N7 (26618)
Qiao Jiaxin
ENS


15/11/2018 - 15/11/2022

jqiao(a)ihes.fr
Board 1E7 (26650)