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ANADEL

ERC Starting grant – Waves propagation in real life physics occur in media which are neither homogeneous or spatially infinity. The birth of radar/sonar technologies (and the raise of computed tomography) greatly motivated numerous developments in microlocal analysis and the linear theory. Only recently toy nonlinear models have been studied on a curved background, sometimes compact or rough. Understanding how to extend such tools, dealing with wave dispersion or focusing, will allow us to significantly progress in our mathematical understanding of physically relevant models. There, boundaries appear naturally and most earlier developments related to propagation of singularities in this context have limited scope with respect to crucial dispersive effects. Despite great progress over the last decade, driven by the study of quasilinear equations, our knowledge is still very limited. Going beyond this recent activity requires new tools whose development is at the heart of this proposal, including good approximate solutions going over arbitrarily large numbers of caustics, sharp pointwise bounds on Green functions, development of efficient wave packets methods, quantitative refinements of propagation of singularities (with direct applications in control theory), only to name a few important ones.

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    • Courmayeur 2025
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    • Work group in Pisa 2024 -Research in Pairs
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    • IMJ-PRG Summer School 2023
    • La Thuile 2023
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    • La Thuile 2022
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    • Conference “Dispersive Waves and Related Topics”
      • Confirmed Speakers – Dispersive Waves and Related Topics
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      • Poster Bergen
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    • Workshop Quantum Resonances and Related Topics
    • La Thuile 2019
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    • Conference PDE’s, Control Theory and Related Topics
      • Confirmed speakers – GE2MI
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    • La Thuile 2018
    • Seventh Itinerant Meeting in PDEs
    • Blow-up, dispersion and PDE’s
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    • Oana Ivanovici
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    • Fabrice Planchon
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Fabrice Planchon

 

Professeur des Universités

Institut de Mathématiques de Jussieu – Paris Rive Gauche

UMR CNRS 7586

Sorbonne Université 

 


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