Séminaire Equations aux dérivées partielles
organisé par l'équipe Modélisation et contrôle
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Barbara Verfürth
Multiscale methods for wave propagation in spatio-temporal metamaterials
10 février 2026 - 14:00Salle de conférences IRMA
Time modulation of materials has become increasingly popular as a further design approach for metamaterials to induce unusual wave phenomena. In the mathematical modelling, this leads to partial differential equations with coefficients that are highly varying in space and/or time. Since direct numerical simulations are prohibitively expensive, multiscale methods are required to efficiently approximate at least the macroscopic behavior. At the example of the classical wave equation, we will discuss two recent approaches in that direction. One approach is more analytical and aims to deduce higher-order effective equations for temporal multiscale coefficients using asymptotic expansions. The other approach is more numerical, where we present the construction of non-polynomial, multiscale basis functions combined with standard time stepping schemes numerical for spatial multiscale coefficients with additional slow time variations. -
Guillaume De Romémont
TBA
10 mars 2026 - 14:00A confirmer
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Corentin Gentil
TBA
17 mars 2026 - 14:00Salle de conférences IRMA
TBA -
Mabrouk Ben Jaba
TBA
24 mars 2026 - 14:00Salle de conférences IRMA
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Takéo Takahashi
TBA
31 mars 2026 - 14:00Salle de conférences IRMA
TBA -
Chloé Mimeau
TBA
28 avril 2026 - 14:00Salle de conférences IRMA
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Aline Lefebvre-Lepot
TBA
5 mai 2026 - 14:00Salle de conférences IRMA
TBA -
Lukas Renelt
TBA
19 mai 2026 - 14:00Salle de conférences IRMA
TBA