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Fifteenth French-Romanian Colloquium on Applied Mathematics

Toulouse, August 29 - September 2, 2022

Goals of the conference

The goal of this meeting is to bring together researchers in applied mathematics, especially those involved in scientific cooperation between France and Romania.

For the previous editions of the conference (organized every two years alternately in France and Romania), see: Bordeaux (2018)         Iasi (2016)        Lyon (2014)        Bucarest (2012).

The 2020 edition was initially scheduled in Brasov, Romania and was canceled at the last minute due to the Covid pandemic. Many thanks to the organizers of the 2020 edition for their great and careful work that could not bear fruit immediately, but was extremely useful to prepare the 2022 edition.

PLANNING

Monday, August 29th

11:45-12:15 Registration (Hall building 1R3)

12:15 - 14:00 Lunch (Restaurant universitaire "Le Théorème" located at the entrance on the campus, close to the subway station "Université Paul Sabatier)"

14:00 - 14:15 Registration (hall 1R3)

14:15 - 15:15 Plenary talk : Mariana HARAGUS (Besançon) - Dynamics of optical frequency combs modeled by the Lugiato-Lefever equation (amphi L. Schwartz - building 1R3, ground floor)

15:15 - 16:15 Plenary talk : Filippo SANTAMBROGIO (Lyon) - From variational Mean eld Games to trajectory optimization in L^1 (amphi L. Schwartz)

16:15-16:45 Coffee break (hall building 1R3)

 

16:45 - 18:45 Mini-symposium 1 - Analysis and Applications (amphi L. Schwartz - building 1R3, ground floor)

16:45 - 17:15 Martin COSTABEL (Rennes) - Stability results for a delta-delta discretization of volume integral equations

17:15 - 17:45 Chérif AMROUCHE (Pau) - Elliptic Problems in Smooth and in Non Smooth Domains

17:45 - 18:15 Wolfgang L. WENDLAND (Stuttgart) - TBA

18:15 - 18:45 Cristian CAZACU (Bucarest) - Sharp weighted first and second order Caffarelli-Kohn-Nirenberg type inequalities in the L^2 setting

 

16:45 - 18:45 Mini-symposium 4 - Fluid mechanics and dynamics. In homage to the memory of Geneviève Raugel (room K. Johnson - building 1R3, 1st floor)

16:45 - 17:15 Nicolas BURQ (Orsay) - TBA

17:15 - 17:45 Hajer BAHOURI (Sorbonne Univesité) - On the global well-posedness for the derivative nonlinear Schrödinger equation on the real line

17:45 - 18:15 Ionel Sorin CIUPERCA (Lyon) - On a cavitation model including bubbles in thin film lubrication

18:15 - 18:45 Martine MARION (École Centrale de Lyon) - Pulses and waves for monotone reaction-diffusion systems

18:45 - 19:15 Colette GUILLOPÉ (Créteil) - TBA

 

 

Tuesday, August 30th

 

9:00 - 10:00 Plenary talk : Monique DAUGE (Rennes) Whispering Gallery Modes and Plasmons in optical cavities   (amphi L. Schwartz - building 1R3, ground floor)

10:00 - 11:00 Plenary talk : Ionel-Dumitrel GHIBA (Iassy) - Convexity concepts in nonlinear planar elasticity (amphi L. Schwartz)

11:00 - 11:30 Coffee break (Hall 1R3)

11:30 - 12:30 Plenary talk : Ion NECHITA (Toulouse) - Some applications of free spectrahedra to quantum information theory (amphi L. Schwartz)

 

12:30 - 13:30 Lunch (Restaurant universitaire  "Le Théorème")

 

13:30 - 14:00 Poster session (hall 1R3)

 

14:00 - 16:00 Mini-symposium 1 - Analysis and Applications (amphi L. Schwartz - building 1R3, ground floor

14:00 - 14:30 Simon LABRUNIE (Université de Lorraine) - Some "exotic" solutions to a nonlinear elliptic equation, and applications to plasma equilibria

14:30 - 15:00 Antonin MONTEIL (Créteil) - Magnetic skyrmions confined in a bounded domain

15:00 - 15:30 Renata BUNOIU-SCHILTZ (Université de Lorraine) - Localization and multiplicity in periodic homogenization

15:30 - 16:00 Sergey MIKHAILOV (Brunel University London) - Steady-State Periodic Anisotropic Stokes, Oseen, and Navier-Stokes Problems in R^n

 

14:00 - 16:00 Mini-symposium 2 - Stochastic equations (room K. Johnson - building 1R3, 1st floor

14:00 - 14:30 Gilles PAGÈS (Sorbonne Université) - Functional convex ordering of stochastic processes : from Brownian diffusions to stochastic Volterra equations

14:30 - 15:00 Ionel POPESCU (Université de Bucarest) - From stochastic representations to neural network approximations of solutions to boundary value problems

15:00 - 15:30 - Damien LAMBERTON (Université Gustave Eiffel - Marne la Vallée) - A probabilistic approach to the regularity of a free boundary

15:30 - 16:00 - Iulian CÎMPEAN (Bucarest) - Ergodicity of Markov semigroups and application to singular SDEs on Hilbert spaces

 

14:00 - 16:00 Mini-symposium 5 - Asymptotic methods for partial differential equations (room F. Pellos - building 1R2, 207)

14:00 - 14:30 - Alexandre MUNNIER (Université de Lorraine) - Asymptotic limit for the Stokes and Navier–Stokes problems in a planar domain with a vanishing hole

14:30 - 15:00 - Valentina BUSUIOC (Université de Saint-Etienne) - Convergence α-Euler vers Euler à faible régularité

15:00 - 15:30 - Adrian VIOREL (Université de Cluj-Napoca) - Metastability in the viscous Burgers equation, an entropy approach

15:30 - 16:00 - Denisa STANCU-DUMITRU (Université Polytechnique de Bucarest) - The Monotonicity of the p-Torsional Rigidity in Convex Domains

 

16:00 - 16:30 Coffee break (Hall 1R3)

 

16:30 - 18:30 Mini-symposium 1 - Analysis and Applications (amphi L. Schwartz - building 1R3, ground floor)

16:30 - 17:00 Radu PRECUP (Cluj-Napoca) - Semilinear problems with poly-Laplace type operators

17:00 - 17:30 Andrei STAN (Cluj-Napoca) - Existence and localization of Nash equilibria for systems with partial variational structure

17:30 - 18:00 Ioan RASA (Cluj-Napoca) - Stochastic convex orders and applications

18:00 - 18:30 Eugen MIHAILESCU (Bucarest) - Pressures for semigroups of maps

 

16:30 - 18:30 Mini-symposium 2 - Stochastic equations (room K. Johnson - building 1R3, 1st floor

16:30 - 17:00 - Jean-François CHASSAGNEUX (Université de Paris) - TBA

17:00 - 17:30 - Oana LANG (Impreial College London) - A stochastic vorticity equation: analytical and numerical properties

17:30 - 18:00 - Noufel FRIKHA (Université de Paris) - Hörmander’s theorem for McKean-Vlasov SDEs

18:00 - 18:30 - Ioana CIOTIR (INSA Rouen) - TBA

 

16:30 - 18:30 Mini-symposium 5 - Asymptotic methods for partial differential equations (room F. Pellos - building 1R2, 207)

16:30 - 17:00 - Michel BELLIEUD (Université de Montpellier)Homogénéisation d’un matériau élastique anisotropique renforcé de fibres anisotropiques très rigides

17:00 - 17:30 - Adina CIOMAGA (Université Paris Diderot) - Periodic Homogenization for Integro-Differential Equations

17:30 - 18:00 - Mahran RIHANI (ENSTA Paris)Homogenization of Maxwell’s equations and related scalar problems with sign-changing coefficients

18:00 - 18:30 - Loredana BALILESCU (Université de Pitesti) - Burnett coefficients in a non-periodic class of microstructures

 

 

Wednesday, August 31st

 

9:00 - 10:00  Plenary talk : Didier BRESCH (Chambéry) - Mean field limits and singular kernels: some recent advances   (amphi L. Schwartz - building 1R3, ground floor)

10:00 - 11:00 Plenary talk :  Liviu IGNAT (Bucarest) - Asymptotic behavior of solutions for some diusion problems on metric graphs  (amphi L. Schwartz)

11:00 - 11:30 Coffee break (Hall 1R3)

11:30 - 12:30 Plenary talk : Nicolas BURQ (Orsay) -  An analysis of deterministic scattering for nonlinear Schrödinger equations after a detour through probabilistic theory    (amphi L. Schwartz)

 

12:30 - 13:30 Lunch (Restaurant universitaire  "Le Théorème")

 

13:45 - 20:00 Excursion

13:45 Meeting in front of the Institute of Mathematics

14:00 Bus departure

15:30 Guided visit of Carcassonne Castle. There will be 4 groups, each one with a guide, for a 2-hours visit. 

18:20 Meeting on the P1 parking parking close to the castle.

18:30 Departure to Toulouse. Arrival at Paul Sabatier University scheduled at 20:00.

 

20:00 Conference dinner at UPSIDUM restaurant located on the campus of Paul Sabatier University.

 

 

Thursday, September 1st

 

9:00 - 10:00  Plenary talk :  Thierry LÉVY (Paris) - Recent advances in 2D Yang-Mills theory    (amphi L. Schwartz - building 1R3, ground floor)

10:00 - 11:00 Plenary talk : Gabriela MARINOSCHI (Bucarest) - Minimal time control for parabolic-type equations   (amphi L. Schwartz)

11:00 - 11:30 Coffee break (Hall 1R3)

11:30 - 12:30 Plenary talk :  Matthieu HILLAIRET (Montpellier) - New results on the collision issue  (amphi L. Schwartz)

 

12:30 - 13:30 Lunch (Restaurant universitaire  "Le Théorème")

 

13:30 - 14:00 Poster session (hall 1R3)

 

14:00 - 16:00 Mini-symposium 2 - Stochastic equations (amphi L. Schwartz - building 1R3, ground floor)

14:00 - 14:30 Eva LÖCHERBACH (Paris 1) - Conditional propagation of chaos for interacting particle systems in a diffusive regime

14:30 - 15:00 Roxana DUMITRESCU (King's College) - TBA

15:00 - 15:30 Oana LUPASCU-STAMATE (Bucarest) - Asymptotic behavior of a one-dimensional avalanche model through a particular stochastic process

15:30 - 16:00 Dan GOREAC (Université Gustave Eiffel - Marne la Vallée) - Controlled mean-field flows with state constraints

 

14:00 - 16:00 Mini-symposium 3 - Mathematics for the industry (room J. Cavaillès - building 1R2, 132)

14:00 - 14:30 Fabien CASENAVE (Safran Tech) - Acceleration of industrial computations using Dictionaries of Reduced-Order Models

14:30 - 15:00 Ionut DANAILA (Université de Rouen)  - Modelling and simulation of phase-change materials

15:00 - 15:30 Nicolas PIGNET (EDF R&D) - Numerical simulation of industrial problems, application of ROM and HPC to large-scale studies

15:30 - 16:00 Sever HÎRSTOAGA (INRIA) - Parareal simulations of highly oscillatory Vlasov equations

 

14:00 - 16:00 Mini-symposium 4 - Fluid mechanics and dynamics. In homage to the memory of Geneviève Raugel (room K. Johnson - building 1R3, 1st floor)

14:00 - 14:30 Dragos IFTIMIE (Lyon) - Sur les équations α–Euler à l’extérieur d’un petit disque

14:30 - 15:00 Van Sang NGO (Université de Rouen Normandie) - Approximate controllability of second grade fluids

15:00 - 15:30 Oana POCOVNICU (Edinburgh) - Problème de Cauchy pour l’équation de Schrödinger cubique à force aléatoire

15:30 - 16:00  A few words on Geneviève Raugel, by the organisers

 

14:00 - 16:00 Mini-symposium 5 - Asymptotic methods for partial differential equations (room F. Pellos - building 1R2, 207)

14:00 - 14:30 Dan TIBA (IMAR Bucharest) - Periodic Hamiltonian Systems and topology optimization

14:30 - 15:00 Cornel MUREA (Mulhouse)  - Pénalisation des équations stationnaires de Stokes et Navier-Stokes et applications

15:00 - 15:30 Mihai NECHITA (Cluj-Napoca) - Unique continuation for convectiondiusion equations using stabilised nite elements

15:30 - 16:00 Maria FARCASEANU  (ISMMA Bucharest) - Classification of singular solutions to nonlinear elliptic equations with a gradient term

 

16:00 - 16:30 Coffee break (Hall 1R3)

 

16:30 - 17:30 Mini-symposium 2 - Stochastic equations (amphi L. Schwartz - building 1R3, ground floor)

16:30 - 17:00 Florin AVRAM (Pau) - Can the Lotka-Volterra canonical form and mass-action kinetics help for studying epidemiology and virology models?

17:00 - 17:30 Vlad Stefan BARBU (Université de Rouen) - Testing statistical hypotheses based on weighted divergence measures

 

16:30 - 18:30 Mini-symposium 3 - Mathematics for the industry (room J. Cavaillès - building 1R2, 132)

16:30 - 17:00  Samuel KOKH (CEA) - Approximation of a class of two-fluid models by acoustic/transport splitting methods

17:00 - 17:30  François MADIOT (CEA) - A posteriori error estimates for mixed finite element discretizations of the Neutron diffusion equations

17:30 - 18:00  Bijan MOHAMMADI (Université de Montpellier) - Avoid drift with continuous deep learning

18:00 - 18:30  Miruna-Stefana SOREA (SISSA Trieste) -  Disguised toric dynamical systems

 

16:30 - 17:30 Mini-symposium 1 - Analysis and Applications (room K. Johnson - building 1R3, 1st floor)

16:30 - 17:00 Rémy RODIAC (Orsay) - On the convergence of critical points of the Ambrosio-Tortorelli functional

17:00 - 17:30 Massimo LANZA DE CRISTOFORIS (Padova) - On the application of a condition of strong upper Ahlfors regularity to potential theory

 

Friday, September 2nd

 

9:00 - 12:00 Mini-symposium 6 - Free and quantum probabilities (amphi L. Schwartz - building 1R3, ground floor)

9:00 - 9:30 Denis ROCHETTE (Toulouse) - Asymmetric quantum cloning

9:30 - 10:00 Maria JIVULESCU (Universitatea Politehnica Timisoara)Order preserving maps on quantum measurements

10:00 - 10:30 Antoine DAHLQVIST (University of Sussex) - An interpolation between free and classical independence of Haar unitaries

 

10:30 - 11:00 Coffee break (Hall 1R3)

 

11:00 - 11:30 Marwa BANNA (NYU Abu Dhabi) - Quantitative estimates on random matrices using free probability tools

11:30 - 12:00 Guilaume CÉBRON (Toulouse) - Asymptotic conditional freeness of random matrices

 

 

 

Place and dates

The fifteenth French-Romanian Colloquium on Applied Mathematics will be held from August 29 to September 2, 2022 at the Toulouse Institute of Mathematics located on the campus of Paul Sabatier University in Toulouse, France.

The reception is scheduled for Monday, August 29 starting from 11:45 a.m. and the presentations will begin at 2:15 p.m.

The Colloquium will end on Friday, September 2 at 12:30 p.m.

We hope that this will allow most participants from France to make the journey on Monday morning, and the return journey on Friday afternoon.

The Institute of Mathematics occupies the buildings 1R1, 1R2, and 1R3. The following rooms will be used for the colloquium :

- amphitheater Laurent Schwartz (building 1R3, ground floor)

- Katherine Johnson (building 1R3, 1st floor)

- Frances Pellos (building 1R2, 2nd floor, room 207)

- Jean Cavaillès (building 1R2, 1st floor, room 132).

 

Scientific Committee

Karine Beauchard, Yann Brenier, Alice Guionnet (president of the committee), Dorin Ieşan, Delia Ionescu-Kruse, Michel Ledoux, Yvon Maday, Petru Mironescu, Radu Precup and Frédéric Rousset.

Coordinators

Mihai Bostan, Radu Ignat, Cătălin Lefter, Ionel Popescu

Local organizing committee

Radu Ignat, Mihai Mariș

The organizers are indebted to Mihai N. Pascu from Transilvania University in Brașov for creating the website.

Partner institutions

The 15th French-Romanian colloquium in Applied Mathematics is organized at the Institute of Mathematics in Toulouse, with the support of the Institut Universitaire de France, Université Paul Sabatier, Labex CIMI, Région Occitanie, the GDR CNRS CALVA and with partial support from the Institute of Mathematics "Simion Stoilow" of the Romanian Academy, project IRN-CNRS ECO-Math.

  GDR CALVA 

Registration

Registration is free, but mandatory. To register,  please use the connection button (upper right corner of the webpage). This requires a SciencesConf account (if you participated in the previous edition of the colloque, you may use the same credentials to login, otherwise you can create an account). The registration site is open until July 15, 2022.

Apply for a talk

If you would like to make a presentation (oral/poster) in one of the minisimposia of the colloquium, please complete the required information under "My space -> Submissions". Please use this latex template for your submission. The PDF obtained after latex compilation should be submitted as the main file, and the TEX file should be submitted as the supplementary file. If you encounter problems during the submission process you can email the local organizers (15colfrro@sciencesconf.org) with the corresponding submission information (TEX and PDF files and your choice for the minisimposia).

Deadline for presentation requests: June 15, 2022.

Poster session

The posters created by young researchers will be displayed in the hall of the IMT during the conference.

A poster session is scheduled Tuesday and Thursday from 1:30 to 2:00 p.m.

Financial support

The local organizers will try to provide financial support to the participants (limited funds, mainly to cover the costs of accommodation and / or meals), the priority being young researchers who give a presentation in a mini-symposium. To request financial support, please send a message to the organizers at 15colfrro@sciencesconf.org.

The subject of the message must be "funding request" and you must specify in the body of the message your name, first name, email, affiliation, your provisional arrival / departure dates and if a request for a presentation has been made (request in progress or accepted). You must also attach a Curriculum Vitae and a list of publications to the message. In addition, doctoral students must also send a letter of recommendation from their supervisor.

Deadline for financial support requests: June 15, 2022.

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