Titel: A variational reduction for the full-dispersion Davey--Stewartson equation.

Abstract: In this talk, we discuss a method to derive the classical Davey--Stewartson equation from its full-dispersion counterpart. 
After a brief tour of the relevant parameter regimes, we prove an approximation result for the energy functionals associated with the equations, based on a Lyapunov--Schmidt-type reduction. 
We then touch upon some existence results.