Denis Villemonais
Contact
Information

Research andteachingposition

Institut Élie Cartan de Lorraine
Université de Lorraine
54506 Vandoeuvre-lès-Nancy
FranceMobile: +33 6 07 03 73 93
Fax: +33 3 83 68 45 34
E-mail: denis.villemonais@univ-lorraine.fr
WWW: http://www.normalesup.org/∼villemonais/

2024 - ... Full professor in applied mathematics in the University of Strasbourg, inside
IRMA and UFR de mathématique et informatique2024 - ... Associate Editor of Applied Probability Trust
2023 - ... Junior member of the Institut Universitaire de France
2022 - 2024 Head of the department of Applied Mathematics at École des Mines deNancy
2021 - ... Member of the Inria team project BIGS/SIMBA (INRIA, Nancy - Grand Est)
2012 - 2024 Professor assistant in applied mathematics in the University of Lorraine,
inside the École des mines de Nancy and the Institut Élie Cartan de Nancy
2015 - 2022 Head of the major Mathematical Engineering at École des Mines de Nancy
2016 - 2021 Elected member of the Conseil de l’École des Mines de Nancy
2012 - 2021 Member of the TOSCA team (INRIA, Nancy - Grand Est)
2011 - 2012 Post-doctoral position in the TOSCA team (INRIA) at the Institut Élie
Cartan de Nancy

Education
2019 University of Lorraine, IECL
• Habilitation à diriger des recherches : “Exponential convergence to a quasistationary distribution and applications”• Defended the 28th november 2019 at the University of Lorraine.
• Jury: Michel Benaı̈m, Jean Bertoin, Pierre Collet, Anne Gégout-Petit, BénédicteHaas, Tony Lelièvre, Sylvie Méléard, Ross Pinsky.
2007 - 2011 École Polytechnique, CMAP
• PhD Thesis in applied mathematics: “ Quasi-stationary distributions and particular method for the approximation of conditioned processes”• PhD advisor: Professor Sylvie Méléard• Defended the 28th november 2011 at the École Polytechnique, with honours.
• Jury: Patrick Cattiaux, Pierre Collet, Pierre Del Moral, Jean-François Le Gall,Sylvie Méléard, Denis Talay, Steve N. Evans.
2004 - 2008 École Normale Supérieure (MP2004)• 2007 - Master 2 in probability and statistic (Université d’Orsay Paris XI)• 2006 - Agrégation de mathématiques• 2005 - Master 1 in mathématics (Université d’Orsay Paris XI)• 2005 - Licence 3 in mathématics (Université d’Orsay Paris XI)1 of 3

Affiliations• Member of the SIMBA project team (Inria)• Member of the MMB Chair (Mathematical Modelling and Biodiversity)• Member of the GdR Mathematics, Health, Life Sciences• Member of the scientific comittee of the GdR Branchement• Principal Investigator of the Associated Teams Inria program MAGO (Modellingand Analysis for Growth-fragmentation processes)
Main talks andconferences

2024, Feb. Quelques résultats asymptotiques pour les systèmes de particules branchantes
pondérées en temps discret, Séminaire de probabilités, Institut Fourier, Grenoble,France.
2023, Nov. Conférence du GdR Branchement, Toulouse, France (member of the organizing committee).
2023, Aug. Some consequences of strong-Feller, Feller and domination properties onquasi-stationary distributions, Celebrating the mathematics of Michel Benaı̈m, Lausanne, Swiss.
2023, Jun. Invited session Quasi-stationary distributions in numerical stochastic methods and statistics, Informs 2023, Nancy, France (co-organizer)
2023, Jun. On asymptotic results for discrete time weighted branching particle systems,Informs 2023, Nancy, France.
2022, Dec. Critères de type Meyn-Tweedie pour l’étude de la quasi-stationarité, Séminaire
Calcul stochastique, Université de Strasbourg, France.
2022, Nov. Fluctuations d’urnes equilibrées avec une infinité de couleurs, Séminaire
probabilités et statistiques, Université d’Orsay, France.
2022, May Fluctuations d’urnes équilibrées avec une infinité de couleurs, Journées deProbabilités 2022, Orbey, France.
2022, Apr. Conference Pólya urns, stochastic approximation and quasi- stationary distributions: new developments in Bath, United Kingdom (co-organizer)
2021, Nov. Quasi-stationary distributions and applications, Biostochastic Networks 2021,
University of Valparaiso, Chile (online).
2021 ,Oct. Almost Sure Convergence of Measure Valued Pólya Processes, StochasticDynamics for Complex Systems, University of Vienna, Austria (online).
2021 ,Sep. Almost Sure Convergence of Measure Valued Pólya Processes, Neutron Transport Days of the Bath-Beijing-Paris Branching Structures Meeting, University ofBath, United Kingdom (online).
2021, May Almost Sure Convergence of Measure Valued Pólya Processes, Siam conference (online).
2020, Sep. Almost sure convergence of Measure Valued Pólya Processes , Stochastic
Processes under Constraints, Oberwolfach, Germany.

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2020, Feb. Convergence exponentielle vers une distribution quasi-stationnaire et applications, Seminar of probability, Toulouse.
2019, Apr. Critères de type Meyn-Tweedie pour l’étude de la quasi-stationarité, Seminar LAGA, University Paris 13.
2019, Mar. General criteria for the study of quasi-stationarity, Seminar on stochastic
processes, University of Zurich, Switzerland.
2018, Mar. Non-failable approximation method for conditioned distributions, Algorithms& Computationally Intensive Inference Seminar of the University of Warwick, UnitedKingdom.
2018, Feb. Exponential convergence of conditioned Markov processes, Joint Risk &Stochastics and Financial Mathematics Seminar, London School of Economics, UnitedKingdom.
2017, Oct. Non-failable approximation method for conditioned distributions, Seminarof the Probability Laboratory of Bath, United Kingdom.
2017, Sep. Conference on quasi-stationary distribution in Paderborn, Germany (coorganizer)→ http://math.uni-paderborn.de/ag/arbeits · · · erenzen/

2017, Mar. Exponential convergence of conditioned Markov processes, Stochastic Analysis Seminar at Imperial College, London, United Kingdom
2016, Nov. Courbure de Wasserstein pour certains systèmes de particules en interaction,Séminaire de calcul stochastique at University of Strasbourg, France
2016, Dec. Criterion for the exponential convergence of conditioned processes, Schoolon Information and Randomness 2016, Santiago, Chile
2016, Aug. New general criterion for the exponential convergence of conditioned processes, invited speaker at 13ème colloque Franco-Roumain, Iasi, Romania
2016, Jul. New general criterion for the exponential convergence of conditioned processes, invited speaker at international workshop Stochastic Processes under Constraints, Augsburg, Germany
2015, Nov. Lessons on quasi-stationary distributions at ANR STAB days, University
Pierre et Marie Curie, Paris, France
2015, May. Organization of the mini-symposium Processus aléatoires en interaction,Congrès SMAI 20152013, Mar. Lessons on quasi-stationary distributions and Fleming-Viot processes, Genetic models and quasi-stationarity at CIRM, France
Computer skills(used forteaching orresearch)• C++ (simulation of Fleming-Viot type processes and teaching at École Polytechnique)• R (statistical study of telomer length distribution and teaching at École des Minesde Nancy)• SAS (teaching at École des Mines de Nancy)• Scilab and Matlab (teaching at École des Mines de Nancy and École Polytechnique)• Python (project supervision at École des Mines de Nancy)
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