Talk

Singular quasilinear wave equations

  • Immanuel Zachhuber (FU Berlin)
E1 05 (Leibniz-Saal)

Abstract

We extend the paradifferential appraoch to quasilinear wave eqauations of Bahouri and Chemin to the case of a quasilinear wave equation with a (random) distributional forcing. I order to do this, we combine their methods with recently developed tools from singular SPDEs, more precisely the Paracontrolled Calculus of Gubinelli, Imkeller and Perkowski. In two dimensions, we obtain a well-posedness result for noises with Hölder-regularity better than -1/8 for generic initial data and for noises with regularity better than -1 with prepared initial data.

Upcoming Events of this Seminar

  • Monday, 14.07.25 tba with Alexandra Holzinger
  • Tuesday, 15.07.25 tba with Anna Shalova
  • Tuesday, 12.08.25 tba with Sarah-Jean Meyer
  • Friday, 15.08.25 tba with Thomas Suchanek
  • Friday, 22.08.25 tba with Nikolay Barashkov
  • Friday, 29.08.25 tba with Andreas Koller