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UID:8914@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20260203T110000
DTEND;TZID=Europe/Paris:20260203T120000
DTSTAMP:20260202T123616Z
URL:https://www.i2m.univ-amu.fr/evenements/tba-271/
SUMMARY:Ari Rappaport (INRIA Saclay): Towards robust discretizations and so
 lvers for the time-harmonic Maxwell equations in complex media
DESCRIPTION:Ari Rappaport: Abstract:\nIn this talk we explore numerical met
 hods to efficiently solve problems related to electromagnetic wave propaga
 tion. We focus on tailored discretizations and iterative solvers designed 
 for robustness and parallel scalability. In the first part\, we present th
 e CHDG method\, a hybridizable discontinuous Galerkin variant that employs
  hybrid variables consistent with impedance transmission conditions. This 
 formulation leads to a contractive fixed-point solver composed of two cell
 -local operators\, making the approach naturally parallelizable. We illust
 rate the method’s performance using results from a 3D matrix-free implem
 entation and discuss computational aspects. In the second part\, we addres
 s Maxwell’s equations with anisotropic material tensors for the permitti
 vity and permeability. We present preliminary results toward extending a t
 wo-level domain decomposition analysis from the isotropic to the anisotrop
 ic setting and identify the key assumptions required for this generalizati
 on.
CATEGORIES:Séminaire,Analyse Appliquée
LOCATION:I2M Saint-Charles - Salle de séminaire\, Université Aix-Marseill
 e\, Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, Franc
 e
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Université Aix-Marseille\,
  Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, France;X
 -APPLE-RADIUS=100;X-TITLE=I2M Saint-Charles - Salle de séminaire:geo:0,0
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DTSTART:20251026T020000
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