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Speakers

Confirmed speakers

Fatiha Alabau

Université de Lorraine, France

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14:20 – 14:55

“On some recent issues on the scalar-input bilinear control of PDE’s”

Fatiha Alabau-Boussouira has been formed and got her PhD at the Université Pierre et Marie Curie in 1987. She was assistant professor at the University of Bordeaux since 1988 until 1997, when she became full professor at the Université Louis Pasteur in Strasbourg, and then moved to the Université de Metz in 1999 (which became the Université de Lorraine in 2012). She carries out her research at the Laboratoire Jacques-Louis Lions at Sorbonne University. She is the author of more than 60 papers in mathematics analysis and applications. Her scientific interests mainly focus on the theory of control and stabilization of partial differential equations and their links to inverse problems. From 2014 to 2017, she was President of the French Society of Applied and Industrial Mathematics (SMAI). From 2010 to 2014, she was the head of the GDR n°3362 in Control of PDE’s, and from 2010 to 2017 the French coordinator for the French-Italian GDRE CONEDP in Control of PDE’s. Since 2018, she is the head for France of the French-German-Italian LIA COPDESC on Applied Analysis.

Grégoire Allaire

Ecole Polytechnique de Paris, France

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10:40 – 11:15

“Shape optimization with imperfect interfaces”

Grégoire Allaire is a Professor of Applied Mathematics at Ecole Polytechnique. He received his PhD from Pierre et Marie Curie (Paris 6) University in 1989.
Professor Allaire’s research focuses on the mathematical modeling, numerical simulation and optimization of physical and mechanical problems. He is a specialist of multi-scale analysis (homogenization) and of shape and topology optimization of structures.

Giuseppe Buttazzo

Università di Pisa, Italy

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09:50 – 10:25

“Variations on a theme by Cheeger”

Giuseppe Buttazzo was at Scuola Normale Superiore di Pisa, student 1972-1976, PhD 1976-1980, researcher 1980-1986, under Ennio De Giorgi. Full Professor in Ferrara 1986-1990, from 1990 in Pisa, Department of Mathematics. Main research interests: calculus of variations, partial differential equations, optimization. He wrote more than 200 papers and several books, managed several international research projects and trained many PhD students. In 2011 he received the “Luigi e Wanda Amerio” prize.

Eduardo Cerpa

Pontificia Universidad Católica de Chile, Chile

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11:40 – 12:15

“Stabilization for the KdV equation: from Zuazua’s result to the most recent ones”

Eduardo Cerpa received the Ph.D. degree in mathematics from Université Paris-Sud 11. He was a postdoc at UCSD and a faculty at USM. Since 2020 Eduardo is an Associate Professor at UC Chile. He received in 2015 the SIAM Activity Group on Control and Systems Theory Prize. He serves as Associate Editor for Systems and Control Letters, SIAM Journal on Control and Optimization, and Mathematics of Control, Signals and Systems.

Jean-Michel Coron

Université Pierre et Marie Curie, Sorbonne Université, France

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09:50 – 10:25

“Obstruction to the small-time local controllability for a KdV control system”

Jean-Michel Coron is professor emeritus at Sorbonne Université. He first worked in the field of non-linear functional analysis. Since the beginning of the nineties, he studied the control theory of finite dimensional control systems and of partial differential equations, which includes both controllability and stabilization issues. His results put strong emphasis on nonlinear phenomena.

Luz de Teresa

Universidad Nacional Autónoma de México, Mexico

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10:40 – 11:15

“On hierarchical control of parabolic equation”

I studied mathematics at the Universidad Nacional Autónoma de México (UNAM) and did my Ph.D at the Universidad Complutense de Madrid under the guidance of Enrique Zuazua. At the end of my Ph.D. I joined as a researcher the Math. Institute of UNAM.

My research is on the controllability of partial differential equations.
In 2000, I published a first paper solving, almost completely, the insensitizing problem for the heat equation. This problem was proposed by J.L. Lions in 1989 and was solved on a weakened version by Bodart and Fabre in 1995. In 2019 we published a paper on the subject but treating, for the first time, the numerical aspects.
The way of treating this subject took me to the study on the controllability of coupled parabolic equations. In a series of papers, we showed that this is a difficult and challenging problem and introduced different techniques towards a full understanding of the subject.

Recently, I have been working on hierarchical control problems, which means that we act on one equation by means of two or more controls that have a hierarchy on their objectives. Generally, one of the controls (leader or follower) has an optimization objective and the other (follower or leader) has a controllability objective.

Other contributions are related with thermoelasticity and Schrödinger equations and, in a forthcoming paper, with discrete Carleman equations for an inverse elliptic problem.

Miguel Escobedo

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13:30 – 14:05

“Instability of some equilibria in an homogeneous Boltzmann equation for radiation”

Miguel Escobedo is Professor at the Department of Mathematics of the Universidad del País Vasco (UPV/EHU). His work has mainly focused on the study of nonlinear partial differential equations (existence and uniqueness of solutions and their qualitative behavior), using tools of classical calculus and functional analysis. He has been more involved recently in kinetic equations, strongly motivated by physical phenomena.

Enrique Fernández-Cara

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16:00 – 16:35

“Controlling some PDEs with nonlocal in space terms”

He has the Grade in Mathematics for the University of Sevilla (Spain) and the Doctorate in Mathematics for this University and also the University Paris 6 (France). He has been scholar, assistant professor, and full professor in the University of Sevilla. He has worked in Sevilla, Paris, Clermont-Ferrand and, more recently, as visiting professor, in several Brazilian universities: UNICAMP in Campinas, UFF in Nitéroi, UFPB in Joao Pessoa and UFPE in Recife. He has been the advisor of more than 25 PhD Theses and has participated in more than 20 Research Projects in Spain, France and Brazil. His main areas of interest are the theoretical and numerical analysis and control of PDEs, with special emphasis in nonlinear PDEs from Physics, Biology, etc. In particular, he has considered inverse and control problems for nonlinear elliptic, parabolic and hyperbolic systems, the homogeneous and non-homogeneous Navier-Stokes equations, the Oldroyd viscoelastic system and variants, other nonlinear non-scalar systems from tumor growth modelling, etc. He has contributed with regularity results, new numerical schemes (many of them based on parallelization), new control solution techniques and related applications. He has published more than 170 papers in international journals and has attended more than 50 international conferences. He has attained the maximal qualification of six 6-year research periods by the Spanish Agency CNEAI (the last one in 2015).

https://personal.us.es/cara/

Günter Leugering

Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany

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11:40 – 12:15

Juan Límaco

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09:00 – 09:35

“Local null controllability of a quasi-linear parabolic equation in dimensions $$2$$ and $$3$$”

I am currently Vice-director of the Institute of Mathematics and Statics of the Fluminense Federal University, I did my doctoral studies at the Federal University of Rio de Janeiro, with professors Manuel Milla Miranda and Luiz Adauto Medeiros as advisors. I have 55 articles published and 530 citations, I am currently the general coordinator of the Seminar on EDP and Applied Mathematics.

Aurora Marica

University Politehnica of Bucarest, Romania

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14:20 – 14:40

Yves Meyer

Ecole Normale Supérieure Paris-Saclay, France

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13:30 – 14:05

“Spikes and Waves”

Yves Meyer was born in 1939. From 1963 to 1974 Y.M. was mostly influenced by Jean-Pierre Kahane, Charles Pisot, and Raphaël Salem (number theory). From 1974 to 1984 Y.M. proved some conjectures raised by Alberto Calderón (elliptic PDE’s in non smooth domains). In 1984 Jacques-Louis Lions gave Y.M. a problem in control theory. Then Y.M. became an applied mathematician and moved to signal processing and image processing. Under the influence of Alexander Olevskii Y.M. recently returned to pure mathematics.

Rafael Orive

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14:20 – 14:55

“Spectral gaps in planar waveguides”

PhD at the UAM and at the University of Chile in 2003. Since 2006, he is Associate Professor in Applied Mathematics at the UAM. In addition, it is a member of Instituto de Ciencias Matemáticas since its formation in 2007.

Jaime Ortega

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15:10 – 15:45

Some results on discrete inverse problems for partial differential equations

Jaime H. Ortega is Bachelor in Mathematics (1989) and Master in Mathematics (1991) from Universidad de Concepción, Chile and Doctor in Mathematics from Universidad Complutense de Madrid (1997) under the supervision of Prof. Enrique Zuazua. He is Full Professor of the Department of Mathematical Engineering and Principal Investigator of the Center for Mathematical Modeling (CMM) of Universidad de Chile, with a long experience in basic sciences and applied projects, directing working groups. He is coordinator of the Copernicus Relay and Copernicus Hub at CMM.

His main areas of interest are control and Inverse Problems in PDE and Image Processing. In the last years he has coordinated several applied projects with applications in mining, in particular the study of mine tailing and the rock mechanics for underground mine. From a couple years he is co-coordinator of the Laboratory of Mathematics Geomatics, developing applications of remote sensing, in particular satellite images, to the study of earth observation, glaciers, water management and climate change, among others, with the use of Artificial Intelligence and High Performance Computing.

Axel Osses

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09:00 – 09:35

“Some inverse problems in heart valve identification”

Mathematical Civil Engineer from the University of Chile (1994), obtained the Master’s degree (DEA) in Numerical Analysis, Scientific Calculus and Non-Linear PDE’s at the Pierre et Marie Curie University (1995) and the PhD in Applied Mathematics from the Ecole Polytechnique in Paris, France, in 1998.
His main line of research has been that of control and inverse problems in PDE’s. It has led to the development of important applications in geophysics, medicine and astronomy and has trained young researchers with capacities to innovate in this area and its applications.

Gustavo Perla-Menzala

Federal University of Rio de Janeiro, Brazil

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15:10 – 15:45

Asymptotic behavior of models in elasticity and fluids, some results with E. Zuazua

Gustavo Perla-Menzala was born in Lima, Peru, in September 1944. He completed his undergraduate studies at the University of San Marcos in Lima. He obtained his Master’s degree at IMPA (Brazil) and his PhD in Mathematics at Brown University (Providence, USA) in 1974. Subsequently, he visited the Courant Institute (New York University) and the Department of Applied Mathematics at Brown University as a Post-Doctorate.

Alessio Porretta

University of Rome Tor Vergata, Italy

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15:10 – 15:45

“Time decay of Fokker-Planck equations with confining drift”

Alessio Porretta is full Professor at the University of Rome Tor Vergata. His research activity is mainly focused on convection-diffusion equations, control and mean field game theory. He was awarded the Miranda Prize for young researchers (2002) and the Fichera Prize (2019). He has given lectures in more than 20 countries in the world including courses on Mean Field Games held in Paris, Chicago, ETH Zurich. His research papers collect more than 1500 citations in math journals.

Domènec Ruiz-Balet

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14:45 – 15:05

“Constrained control in reaction-diffusion equations”

Domènec Ruiz-Balet is a PhD Student at Universidad Autónoma de Madrid (UAM). He earned the Bachelor’s Degrees on Mathematics and Physics at Universitat Autònoma de Barcelona (UAB) and the Master’s Degree in Applied Mathematics in an Erasmus Mundus program at University of L’Aquila (UAQ) and University of Hamburg (UH). Currently, he is studying for his PhD in Control Theory, under the supervision of Prof. Enrique Zuazua (FAU, University of Deusto and Universidad Autónoma de Madrid).

Emmanuel Trélat

Université Pierre et Marie Curie, Sorbonne Université, France

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13:30 – 14:05

“Exponential convergence towards consensus for non-symmetric linear first-order systems in finite and infinite dimensions”

Emmanuel Trélat is a professor at Sorbonne Université in Paris and is the director of Laboratoire Jacques-Louis Lions. His research interests range over theoretical and numerical control in finite and infinite dimension. He has co-authored 25 articles and proceedings with Enrique Zuazua.

Marius Tucsnak

Université de Bordeaux, France

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11:40 – 12:15

“Reachable spaces for infinite dimensional systems”

Marius Tucsnak is professor of mathematics at University of Bordeaux, France. His interests include control theory for infinite dimensional systems and the analysis of nonlinear partial differential equations describing fluid-structure interactions. In particular, he is known for his contributions to the development of new functional, complex and harmonic analysis methods in obtaining controllability results for systems described by linear partial differential equations. Concerning the analysis of systems describing fluid-structure interactions, his most well-known contribution is the global in time existence theorem for the equations describing the motion of a solid in a viscous incompressible fluid, which he obtained (in collaboration with Victor Starovoitov and Jorge San Martin) in 2002. His book Observation and control for operator semigroups, which is a joint work with George Weiss from 2009, is a major reference text. He is a member of Institut Universitaire de France (IUF) and he received the Spiru Haret prize of the Romanian Academy.

https://www.math.u-bordeaux.fr/~mtucsnak/

George Mason University, USA

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10:40 – 11:15

“Controllability properties of fractional PDEs:What is the state of the art?”

Mahamadi Warma received a Ph.D degree in 2002 at the University of Ulm in Germany. From 2005 to 2019 he was professor at the University of Puerto Rico, Rio Piedras Campus. Since 2020 he is a professor at George Mason University in Fairfax, Virginia. His research interest includes: Calculus of variations, nonlocal and fractional PDEs, optimization, and controllability.

Xu Zhang

School of Mathematics, Sichuan University, China

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09:50 – 10:25

“Operator-valued, backward stochastic Riccati equations and application”

Xu Zhang is a Cheung Kong Scholar Distinguished Professor at School of Mathematics, Sichuan University, Chengdu, China. His research interests include control theory, partial differential equations and stochastic analysis.