Talks & Research Visits

Invited talks, seminars, research visits, and conference presentations by Anthony Couthures.

Invited Talks & Seminars

Newcomer Seminar: Presentation, Previous and current research Oct 6, 2026
2026SeminarsOpinion DynamicsControl & OptimizationMulti-Agent Systems

Newcomer Seminar: Presentation, Previous and current research

University of Louvain (UCLouvain) • Louvain-la-Neuve, Belgium • 6 October 2026  |  INMA Seminar, ICTEAM Institute

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Abstract

I will first discuss my Ph.D. on multi-agent systems and environmental modeling. I will give a high-level introduction to opinion dynamics and explain how I used game theory and network approaches to model the feedback loop between social polarization and climate change negotiations, investigating phenomena like the "oscillatory tragedy of the commons."

Next, I will introduce my current postdoctoral work with Julien M. Hendrickx and Gianluca Bianchin on robust control and optimization. We are adapting the Performance Estimation Problem (PEP) framework, which was originally developed for analyzing optimization algorithms, to evaluate control systems. I will show how we use this framework to quantify the exact finite-horizon robustness of Linear Quadratic Regulators (LQR) under LTI uncertainties by reformulating the worst-case search as a Semidefinite Program.

Influence des dynamiques d'opinion sur le changement climatique : analyse et stratégies macroscopiques Apr 8, 2026
2026PhD Thesis DefenseOpinion DynamicsGame TheoryMulti-Agent SystemsDecarbonization

Influence des dynamiques d'opinion sur le changement climatique : analyse et stratégies macroscopiques

Université de Lorraine • Nancy, France • 8 April 2026  |  Doctoral School IAEM Lorraine (CRAN Laboratory)

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Doctoral dissertation defense covering the main subject of my thesis manuscript. After an introduction of the different approaches we explored: game-theoretic climate negotiations, opinion dynamics coupled with environmental dynamics. I present in details the analysis of nonlinear opinion dynamics Continuous Opinion Signaled Action (COSA) as well as the emergence of consensus and polarization phenomena on complex networks for this system. The model is described by the following differential equation:

\[\dot{x}_i = -x_i + \beta r(E) + (1-\beta) \frac{1}{d_i} \sum_{ j \in \mathcal{V}} a_{ij} s(x_j)\] where \(x_i \in [0, 1]\) is the opinion of agent \(i\), \(\beta \in [0, 1]\) is the weight of the environmental feedback, \(r(E)\) is the global environmental state response, and \(a_{ij}\) is the adjacency matrix of the network.

Analysis of an Opinion Dynamics Model Coupled with an External Environmental Dynamics Jan 15, 2026
2026SeminarsOpinion DynamicsDynamical SystemsEnvironmental FeedbackBifurcations

Analysis of an Opinion Dynamics Model Coupled with an External Environmental Dynamics

University of Louvain (UCLouvain) • Louvain-la-Neuve, Belgium • January 2026
Hosts: Julien M. Hendrickx & Gianluca Bianchin (ICTEAM)

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Abstract

Invited seminar presenting the mathematical analysis, equilibrium properties, and bifurcations of multi-agent opinion dynamics interconnected with external environmental degradation loops. Explores continuous-time opinion models, stability criteria, and feedback loops with environmental variables.

Analysis of an Opinion Dynamics Model Coupled with an External Environmental Dynamics Oct 1, 2024
2024SeminarsOpinion DynamicsDynamical SystemsEnvironmental FeedbackBifurcations

Analysis of an Opinion Dynamics Model Coupled with an External Environmental Dynamics

Delivered at (2 venues):
  • Institut Élie Cartan de Lorraine (IECL) • Nancy, France • October 2024 IECL PhD Seminar
  • GDR MACS – Action Multi-Agent Systems • Paris, France • June 2024 National Working Group Seminar
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Abstract

Invited seminar presenting the mathematical analysis, equilibrium properties, and bifurcations of multi-agent opinion dynamics interconnected with external environmental degradation loops. Explores continuous-time opinion models, stability criteria, and feedback loops with environmental variables.

Climate Negotiations & Transport Decarbonization (Two Presentations) Oct 15, 2023
2023SeminarsGame TheoryOptimizationDecarbonization

Climate Negotiations & Transport Decarbonization (Two Presentations)

EDF Lab Paris-Saclay (R31 OSIRIS Team) • Palaiseau / Saclay, France • October 2023
Hosts: Olivier Beaude

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Abstract

Two research seminars delivered for the R31 OSIRIS team during a one-month research residency:

1. Game Theory & Mechanism Design approaches for modeling international climate agreements. 2. Optimization-based formulation for decarbonizing the private passenger transportation sector at regional scale.

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Research Visits

University of Louvain (UCLouvain) Jan 1, 2026
2026Research VisitControl & OptimizationRobust Control

University of Louvain (UCLouvain)

Louvain-la-Neuve, Belgium • January 2026
Hosts: Julien M. Hendrickx & Gianluca Bianchin (ICTEAM Institute)

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Abstract

Short research stay meeting the team for a potential postdoctoral position. I presented my works on opinion dynamics coupled with environmental dynamics.

University of Liège May 1, 2025
2025Research VisitOpinion DynamicsDynamical SystemsBifurcations

University of Liège

Liège, Belgium • May 2025
Hosts: Alessio Franci & Anastasia Bizyaeva

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One-week research stay to extends our works on opinion dynamics coupled with environmental dynamics from CDC 2025 publication for a journal extension.

EDF Lab Paris-Saclay Oct 1, 2023
2023Research VisitOptimizationDecarbonizationGame Theory

EDF Lab Paris-Saclay

EDF Lab Paris-Saclay (R31 OSIRIS Team) • Palaiseau / Saclay, France • October 2023 (One Month)
Hosts: Olivier Beaude

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Abstract

One-month research residency contributing to optimization formulations for regional private passenger transport decarbonization, including modal shift modeling, EV fleet investments, and non-convex quadratic programming. Resulted in the NetGCoop publication and co-supervision of research work.

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Conference & Workshop Presentations

An Optimization Setup of the Decarbonization Problem in the Transportation Sector Oct 1, 2024
2024Conference PresentationOptimizationDecarbonizationGame Theory

An Optimization Setup of the Decarbonization Problem in the Transportation Sector

NETGCOOP 2024 • Lille, France • October 2024  |  11th Int. Conf. Netw. Games Control Optim. (NETGCOOP 2024)

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Presentation at NETGCOOP 2024 from the research residency at EDF Lab Paris-Saclay on regional private passenger transport decarbonization via mixed-integer and quadratic optimization models under budget and modal shift constraints.

Analysis of a Continuous Opinion and Discrete Action Model Coupled with an External Dynamics Jun 25, 2024
2024Conference PresentationOpinion DynamicsControl & OptimizationDynamical Systems

Analysis of a Continuous Opinion and Discrete Action Model Coupled with an External Dynamics

European Control Conference (ECC 2024) • Stockholm, Sweden • June 2024  |  2024 European Control Conference (ECC 2024)

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Presentation of the associated paper with the coupled opinion dynamics and environment dynamics in discrete time. In this case, the CODA model coupled with the environment admit chaotic regimes depending on the coupling parameter in:

\[x_{k+1} = x_k + \beta \left(I - \mathrm{diag}(x_k)\right)^2 \left(D^{-1}A q_k - x_k\right) + (1-\beta) r(e_k)\] \[e_{k+1} = (1- \gamma) e_k + \mathbf{1}_n^\top x_k\]

Cross-country imitation games and climate change Sep 1, 2024
2024Workshop & AbstractGame TheoryDecarbonizationOpinion Dynamics

Cross-country imitation games and climate change

FAERE 2024 • Strasbourg, France • September 2024  |  FAERE 2024 (11th Annual Conference)

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Presentation at the French Association of Environmental and Resource Economists conference on international carbon emission imitation games and strategic interaction from my join work with Bouchra Mroué.

Planning games for global decarbonization strategies Nov 20, 2023
2023Workshop & AbstractGame TheoryOptimizationDecarbonization

Planning games for global decarbonization strategies

PGMO Days 2023 • Palaiseau / Saclay, France • November 2023  |  PGMO Days 2023 (EDF Lab Paris-Saclay)

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Abstract presentation at the Gaspard Monge Program for Optimization (PGMO) Days on non-cooperative game-theoretic models for international climate negotiations.

Static game models for country carbon emissions Nov 29, 2022
2022Workshop & AbstractGame TheoryOptimizationDecarbonization

Static game models for country carbon emissions

PGMO Days 2022 • Palaiseau / Saclay, France • November 2022  |  PGMO Days 2022 (EDF Lab Paris-Saclay)

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Abstract

Abstract presentation at PGMO Days analyzing equilibrium strategies, Pareto efficiency, and carbon tax mechanisms in static emission games.

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