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SUMMARY:Detection of high codimensional bifurcations in variational PDEs -
  Christian Offen (Massey University)
DTSTART:20190717T100000Z
DTEND:20190717T110000Z
UID:TALK127597@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:We derive bifurcation test equations for A-series<br>singulari
 ties of nonlinear functionals and\, based on these equations\, we<br>propo
 se a numerical method for detecting high codimensional bifurcations in<br>
 parameter-dependent PDEs such as parameter-dependent semilinear Poisson<br
 >equations. As an example\, we consider a Bratu-type problem and show how 
 high<br>codimensional bifurcations such as the swallowtail bifurcation can
  be found<br>numerically. Lisa Maria Kreusser\, Robert I McLachlan\, Chris
 tian Offen
LOCATION:Seminar Room 1\, Newton Institute
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