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SUMMARY:Andrea Moiola: "Trefftz discontinuous Galerkin method with evanesc
 ent plane waves"
DTSTART:20261110T141500Z
DTEND:20261110T151500Z
DTSTAMP:20261030T044500Z
UID:indico-event-17180@indico.math.cnrs.fr
DESCRIPTION:Classical Trefftz discontinuous Galerkin methods approximate H
 elmholtz solutions using propagative plane waves and are subject to strong
  numerical instabilities.Evanescent plane wave bases can substantially mit
 igate this phenomenon.We propose a simple recipe to select such basis func
 tions.We show that the numerical results obtained by the Ultraweak Variati
 onal Formulation (UWVF) greatly improve thanks to this choice. This is a 
 joint work with Nicola Galante (ENSTA) and Emile Parolin (Sorbonne/INRIA).
 \n\nhttps://indico.math.cnrs.fr/event/17180/
URL:https://indico.math.cnrs.fr/event/17180/
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