Project description
Making partial differential equations more practical for real-world applications
Partial differential equations (PDEs) are powerful tools for understanding how systems evolve and interact over time, especially in physics, biology and economics. Despite their widespread use, certain PDE types are difficult to analyse owing to their complexity and the lack of general solutions. The ERC-funded PaDiESeM project aims to study two specific PDEs arising in large-scale systems involving many interacting components. PaDiESeM will additionally strive to further understand PDE stability and behaviour to address practical problems, such as optimising decision-making in competitive environments and managing distributed systems.
Objective
Partial differential equations (PDEs) are ubiquitous in science, whether it is in physics, engineering, biology or economics, as they naturally arise in the modelling of continuous objects. Recently, several PDEs have been derived to characterize complex objects such as: the best response by a player facing a continuum of adversarial players, the optimal control used to manage a distributed system or also the free energy or rate function of some distributed physical systems. All the associated PDEs are written on a set of measures on a smooth finite dimensional domain and raise new and difficult analytical challenges such as regularity and stability of the solutions, or the existence of weak notions of solutions. A systematic understanding of those equations is missing at the time, but it would lead to: derive rigorously the PDEs form the underlying models, justify numerical computations and, most importantly, to prove quantitative estimates and several properties of the modelled systems, which are otherwise out of reach because of the absence of explicit solutions.
The key challenges targeted in this proposal are concentrated on two PDEs on spaces of measures, which are for the moment only understood in particular regimes, often very simplified compared to their original motivations. The first one is the mean field game (MFG) master equation: we intend to obtain a precise theory of regularity which will then help us both to extend the actual theory to more realistic MFGs and to have a better understanding of the stability of MFG equilibria. The second one is the Hamilton-Jacobi-Bellman equation: we aim to obtain much more general stability properties in order to treat practical mean field optimal control problems and mean field physical systems. Moreover, we also plan to introduce new PDEs modelling the optimal control of MFG master equations, thus raising new mathematical challenges. The design of numerical schemes for such equations will complement the program.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences mathematics pure mathematics mathematical analysis differential equations partial differential equations
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2025-STG
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75794 PARIS
France
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