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SUMMARY:GS Advanced Topics in PDE: Boundary determination in anisotropic e
 lasticity
DTSTART:20251017T120000Z
DTEND:20251017T140000Z
DTSTAMP:20260317T060700Z
UID:indico-event-807@math-events.uni-bonn.de
DESCRIPTION:Speakers: Hjørdis Schlüter (Helsinki)\n\nThis is joint work 
 with Joonas Ilmavirta\, Mikko Salo and Daniel Windisch. I will talk about 
 the elastic wave equation that models waves that propagate through elastic
  media. We are particularly interested in materials that are highly anisot
 ropic and aim at recovering the density of mass and the so-called stiffnes
 s tensor\, that capture the elasticity of the material\, from exterior mea
 surements. The exterior measurement that we consider is the Dirichlet-to-N
 eumann map. I will talk about a recent result\, where we for generic stiff
 ness tensor fields are able to determine the normalized stiffness tensor (
 where we are not able to distinguish between density and stiffness tensor)
  at the boundary of the medium. For this result we need a construction of 
 special solutions and employ tools from algebraic geometry.\n\nhttps://mat
 h-events.uni-bonn.de/event/807/
LOCATION:Endenicher Allee 60\, Room SemR 0.011 (Mathezentrum)
URL:https://math-events.uni-bonn.de/event/807/
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