The Lebesgue Chair is a temporary international professorship position that aims at hosting scientific leaders in the forefront of mathematical research in the laboratories of the Lebesgue Center. The Chair activities are focused on research and training.

The Lebesgue Chair is applied at two levels:
Junior position
Senior position

The Lebesgue Chair is open to all fields of mathematics. However priority will be given to candidates whose research areas interact with the current Lebesgue thematic semester.

The invited professor should propose a course of ten or twenty hours for graduate students;
the professor may participate to a summer school or give a mini-course for the cycle of conferences "Journées Louis Antoine";
he could direct a PhD Thesis with a coadvisor from Lebesgue.

Eligibility Criteria

Are eligible for Junior professorship position foreign researchers who obtained their PhD in the last five years.
Are eligible for Senior professorship position foreign researchers who obtained their PhD beyond the last five years.

Selection

The invited Professors of the Lebesgue Chair are selected annually by the Scientific Committee of the Lebesgue Center, in collaboration with the organizers of the thematic semesters.

Laureats :

2025

Mircea Mustaţă

Mircea Mustaţă is a Professor in the Department of Mathematics at University of Michigan. His work is in algebraic geometry. He studies certain invariants of hypersurface singularities (Hodge ideals) that arise naturally from Saito's theory of mixed Hodge modules. He is interested in general in invariants of singularities of algebraic varieties, such as minimal log discrepancies, log canonical thresholds, multiplier ideals, Bernstein-Sato polynomials, and F-thresholds. Various points of view and techniques come in the picture when studying these invariants: resolutions of singularities, jet schemes, D-modules or positive characteristic methods.

Shihoko Ishii

Shihoko Ishii is a professor at the University of Tokyo. Her research focuses on singularity theory in algebraic geometry. In particular, she studies arc spaces, which are infinite-dimensional geometric objects encapsulating information about germ of curves on a variety, and feature a lot of interesting connections with the singularities of the variety. She received: the Saruhashi Prize for accomplishments by a Japanese woman researcher in the natural sciences (1995), the Algebra Prize from the Mathematical Society of Japan (2011) and the Japan Academy Prize and Imperial Prize (2021). She is a member of the 2022 edition of the list "Asian Scientist 100" by the Asian Scientist.

Christopher Heng Chiu

Christopher Heng Chiu is an SNSF postdoctoral fellow at the University of Bern. His research is in algebraic geometry and commutative algebra, with a particular interest in questions of finiteness in infinite-dimensional geometry. He has worked on arc spaces from the point of view of singularities of algebraic varieties; as well as on questions of equivariant Noetherianity in representations of infinite-dimensional groups.

2024

Boualem Djehiche (KTH Stockholm)

Boualem Djehiche is a professor at the Division of Mathematical Statistics of the Department of mathematics, KTH, Stockholm, Sweden. His current research interests are in the area of Stochastic Analysis and include Stochastic Control and Differential Games, Insurance Mathematics and Mathematical Finance.

Andrey Piatnitsky (Artic University of Norway)

Andrey Piatnitsky is a professor in Mathematics at the Arctic University of Norway, UiT, campus Narvik, and a Leading Researcher at the Institute for Information Transmission Problem of Russian Academy of Sciences. His research interests include homogenization of partial differential operators and integral functionals, asymptotic analysis and averaging of partial differential equations and diffusion processes, singularly perturbed operators, Gamma-convergence problems, stochastic partial differential equations, problems in domains with microscopic geometry, random walks in random environment and mathematical physics. A. Piatnitski is a participant of a number of international research projects in the fields of homogenization, stochastic analysis and Gamma-convergence in France, Italy, Portugal, Germany, Norway and other countries. His work has been supported by various national and international foundations. At present A. Piatnitski is a principal investigator of the MASCOT Aurora project at the Arctic University of Norway, his research work is also supported by the "Pure Mathematics in Norway" program.

Shanjian Tang (Fudan University)

Shanjian Tang is a professor at Department of Finance and Control Sciences, School of Mathematical Sciences, and Director of Mathematical Finance, Fudan University, Shanghai, China. His research interests include stochastic control, nonlinear filtering, backward stochastic (partial) differential equation, and mathematical finance. He was a Humboldt research fellow from March 2000 to October, 2021. In 2015, he was awarded the First Prize of the Natural Science by the Chinese Ministry of Education, and in 2019, he was awarded the Second Prize of the National Natural Science of China. He is now the editor of the Series in Quantitative Finance, World Scientific Publishing Company, and a fellow of China Society of Industrial and Applied Mathematics (CSIAM).

2023

Philip Ernst

Philip Ernst is Chair in Statistics and Royal Society Wolfson Fellow at Imperial College London. His research interests are in applied probability, exact distribution theory, operations research, optimal stopping, queueing systems, reflected Brownian motion, statistical inference for stochastic processes, and stochastic control. In 2018, Ernst received the Tweedie New Researcher Award from the Institute of Mathematical Statistics, often considered the highest honor for excellence in research for an early-career statistician or applied probabilist. In 2020, Ernst was named the inaugural winner of the Institute for Operations Research and the Management Sciences (INFORMS) Don Gaver, Jr. Early Career Award for Excellence in Operations Research, the first institute-wide early-career award. Ernst's research has been supported by The British Academy, The National Science Foundation, The Royal Society, The U.S. Army Research Office (ARO), and The U.S. Office of Naval Research (ONR).

Hong-kun Zhang

Hong-kun Zhang is full Professor at University of Massachusetts Amherst, USA. Her expertise lies in statistical properties of hyperbolic systems, especially chaotic billiards. She was the awardee for NSF Career Award in 2012, as well as “Simons Fellow in Mathematics” by the Simons Foundation USA. She has published more than 40 papers in top journals, including Communications in Mathematical Physics, Transactions in AMS, etc.

Victor Manuel Rivero Mercado

I'm a researcher specializing in the theory of stochastic processes, and you'll often find renewal theory, the theory of excursions from a set and the theory of Markov processes as recurring topics involved in my research work. Among other things, these are powerful tools that can be applied in almost any area of stochastic modeling, such as building the theory of fluctuations in real-valued Lévy processes and additive Markov processes, topics I've been working on since the beginning of my career. Self-similarity underlies fractal and chaos theory, and governs the behavior of various fundamental stochastic processes that appear as scale limits of other stochastic processes. Examples of these are stable processes and self-similar Markov processes. Self-similar Markov processes are related to additive and Levy Markov processes by the so-called Lamperti transform. One of my main research themes is the study of the fine trajectory properties of self-similar Markov processes. Local times are random clocks that are useful for describing the time spent at particular locations by a stochastic process, in particular they are useful for understanding the length of random cycles. We can study the dependence of time spent in two or more neighboring points, which leads to the study of local times as stochastic processes in the space variable. Local times are closely related to branching processes and infinitely divisible processes, in which I have become more intensely interested in recent years.

Patrice Sawyer

Patrice Sawyer is a full professor at Laurentian University in Sudbury, Canada. His research focuses on harmonic analysis on symmetric spaces of noncompact type and on root systems. He has particularly focused on the product formula for spherical functions and on exact estimates on these and on the heat kernel. He has a long-standing collaboration with Professor Piotr Graczyk of the University of Angers.

2022

Adriana Villa Murillo

Adriana Villa-Murillo is Venezuelan, she obtained her PhD in Statistics and Optimization at the Polytechnic University of Valencia (UPV-Spain) in 2013. Currently she is a professor and researcher at Viña del Mar University (Chile). His main research focuses on modeling in Biostatistics with Machine Learning and Data Mining.

Carlo Gaetan Université de Venise

Carlo Gaetan obtained his PhD in Statistics from the University of Padua in 1994. He is a professor of statistics at Ca' Foscari University in Venice (Italy). He was a researcher and visiting professor at the University of Paris - Sorbonne, University of Montpellier, University Jaume I of Castellón (Spain), INRAE Avignon. His research focuses on spatial statistics and statistics for extreme values, with applications to environmental and climatological data.

2019

Fabien Pazuki Université de Copenhague

His research focuses on the arithmetic of abelian varieties, algebraic curves, and Calabi-Yau varieties. He focuses in particular on the notions of heights and also works on problems of arithmetic dynamics.

Daniel Perrucci Université de Buenos Aires

Daniel Perrucci was born in Argentina in 1979. He received his PhD in mathematics from the University of Buenos Aires, Argentina, in December 2008. The main topic of his thesis was the definition and complexity study of symbolic algorithms for systems of polynomial equalities and inequalities over real numbers. As a postdoc, he was invited for several months to IRMAR, University of Rennes 1, France, in 2010. Currently a professor at the University of Buenos Aires, Argentina, and a researcher at CONICET, Argentina, he is now interested in other aspects of real effective algebraic geometry, such as sums of squares, positivity certificates, polynomial optimization, and the topology of semi-algebraic sets. He also enjoys working with the Argentine Mathematical Olympiad team for high school students.

Matthias Strauch Indiana University

His research focuses on the theory of continuous p-adic representations of p-adic reductive groups within the framework of the p-adic Langlands program. His recent work focuses on geometric constructions of these representations using rigid analytic spaces, p-adic period spaces, arithmetic differential operators, and links with representations of Lie algebras.

2018

Fernando Casas Universitat Jaume I, Spain

Fernando Casas received his PhD in theoretical physics from the University of Valencia in 1992. He has been a professor of applied mathematics at the Universidad Jaume I de Castellón (Spain) since 2009. He has been a visiting scholar at the University of Maryland at College Park, and a visiting scholar at the University of Cambridge and Texas A&M University in Qatar (TAMUQ). His research focuses on geometric numerical integration, including the design and analysis of splitting and composition methods for differential equations and their applications, Lie group methods, perturbation techniques, and all the algebraic problems involved. He is the co-author of the monograph "A Concise Introduction to Geometric Numerical Integration" (CRC Press, 2016).

2017

Vestislav Apostolov Université de Québec

Amine El Sahili Université libanaise

Amine El Sahili is a professor at the Lebanese University. He specializes in Graph Theory, particularly: b-colorings of graphs, paths and cycles in tournaments (existence - counting - parity), trees in n-chromatic digraphs: maximal forests. He began a joint research program with Ali Fardoun in December 2016 on spectral graph theory and geometry. A CIMPA research school was organized in February 2017 by Amine EL Sahili and Ali Fardoun entitled "Graph Theory and its Applications" at the Lebanese University. Since December 1, 2016, Zeina Hanna has been preparing a thesis jointly with Paul Baird Ali Fardoun and Amine El Sahili. During his stay, he will collaborate with Ali Fardoun and Paul Baird.

Emmy Murphy, MIT

2016

William Kleiber (University of Colorado)

Nicolas Privault (Nanyang Technological University)

An engineer from Télécom Paris and a doctor in Mathematics from the University of Paris 6, Nicolas Privault is a lecturer and researcher in Ếvry, La Rochelle and Poitiers before moving to Hong Kong and then Singapore in 2010. He is the author of several books and more than a hundred research articles. His work focuses on probability and stochastic analysis, of which he is a specialist in Brownian, Poissonian and point frameworks. He is also interested in applications, particularly in financial mathematics.

Dario Bambusi, Milan, Italie

Alexander Grigor'yan, Bielefeld

Thomas Kappeler, Zürich

Rafe Mazzeo, Stanford

Alvaro Pelayo, Saint Louis

Mark Williams, Chapel Hill

Huicheng Yin, Nanjing

2014

Alan Reid, University of Texas

Fabrizio Catanese, Universität Bayreuth

2013

Yuri Bakhtin, New York University

Fabrice Beaudoin, Purdue University