16 | IHES Annual Report 2021 IHES Annual Report 2021 | 17
Laurent LAFFORGUE Mathematics, Professeur Permanent from 2000 to 2021,
Huawei Chair of Algebraic Geometry.
Le principe de fonctorialité de Langlands comme un problème de généralisation de la loi d'addition Prepublication accepted (108 pages) in the Asterisque collection (pending review).
Symétries, invariants et quotients Notes of a lecture given at the Università degli studi dell'Insubria (402 pages); book in preparation.
With O. Caramello Sites et topos de Grothendieck : une introduction Book in preparation (600 pages).
Prix Peccot, Collège de France (1996) CNRS Bronze Medal (1998) Clay Research Award (2000) Prix Jacques Herbrand, Académie des sciences de Paris (2001) Fields Medal (2002) Doctor Honoris Causa, Notre Dame University, USA (2011) Académie des sciences de Paris, member
Editor of: Annales des sciences mathématiques du Québec Moscow Mathematical Journal (MMJ) Afrika Matematika Milan Journal of Mathematics
LAURENT LAFFORGUE has mainly been involved in supporting the development of Grothendieck's theory of toposes and its applications, in particular through the creation of one or several schools. In 2021, he worked for the creation of a foundation dedicated to the theory of toposes and more generally of Grothendieckian mathematics. Such a foundation has now been created in Italy under the name Istituto Grothendieck . He also tutored a ENS student on toposes, relating to the latter's courses, and had numerous exchanges with Olivia Caramello on her work on relative toposes .
Canada Mathematical Physics Seminars Series, Perimeter Institute, Waterloo (November 12) On the Perturbation Theory for Spectra in Quantum Mechanics (video seminar)
China (P.R.) Chern: a Great Geometer of the 20th Century - a Conference for the 110th Anniversary of the Birth of Professor Shiing-Shen Chern, Tsinghua University, Beijing (October 10-14) Quantum Minimal Surfaces (video seminar)
France Summer School Enumerative Geometry, Physics and Representation Theory , IHES, Bures-sur-Yvette (July 5-16) BPS Counting and Pseudoperiodic Topology (conference)
Scientific Days IHES-Huawei, Centre de recherche Lagrange, Paris (November 22) One loop exact Fourier transform (talk)
Combinatorics and Arithmetic for Physics: Special Days, IHES, Bures-sur-Yvette (November 30-December 2) An Update on Algebraic Hypergeometric Series (video conference) - (organizer)
Israel Distinguished Lecture Series in Mathematics, University of Haifa (March 16-18) Quantum Spectra in Algebraic Geometry, I, II, III (video conference)
Italy Unifying Themes in Geometry, Lake Como School of Advanced Studies, Como (September 29) Geometry from the Perspective of Quantum Mechanics and String Theory (video conference)
Russia Geometry and Homological Mirror Symmetry, Sirius Mathematics Center, Sochi (December 11-14) Boutroux Curves (video conference)
Conference in Honour of Alexey Bondal's 60th Birthday, Steklov Mathematical Institute of Russian Academy of Sciences, Moscow (December 15-17) Riemann Hilbert Correspondence for q difference Modules (video conference)
South Korea Quadranscentennial KIAS Lecture, Korea Institute for Advanced Study, Seoul (September 14 and 15) Morse Novikov Theory for Holomorphic 1 forms I,II (2 video seminars)
United States Donaldson-Thomas invariants and Resurgence, Simons Collaboration on Special Holonomy in Geometry, Analysis, and Physics, Duke University (January 11-15) Analyticity and Resurgence (video conference)
Homological Mirror Symmetry and Applications, ISMA Miami (January 19-22) Blow up Formula for Quantum Cohomology (I) Dimension Theory (II) (2 video conferences)
Drinfeld seminar, University of Chicago (February 24 and March 3) Multiplication Kernels I,II (2 video seminars)
Math-Science Literature Lecture Series, Harvard University Center of Mathematical Sciences and Applications, Cambridge (March 30) History of Homological Mirror Symmetry (video conference)
M-Seminar, Kansas State University (November 4) On the Perturbation Theory for Spectra in Quantum Mechanics (video seminar)
Video conference School on Toposes Online (June 24-30) Classifying Toposes of Geometric Theories (4 video lectures) (organizer)