73 citations · 233 across the 23 of their papers we have counts for
28 papers
Global dynamics in the 3D pressureless Euler-Poisson system for ions
Lucas Ertzbischoff, Catalina Jurja, Klaus Widmayer
In this work we consider the pressureless Euler-Poisson system on describing ion dynamics, which is a common model in the study of cold plasma. We prove global regul…
An effective energy-enstrophy diffusion process with a condensation bound
Alain-Sol Sznitman, Klaus Widmayer
We use Gaussian measure on to define the coefficients of an elliptic diffusion and show that it lives in an open cone of . One component represents ens…
An inviscid limit to an effective energy-enstrophy diffusion process
Alain-Sol Sznitman, Klaus Widmayer
In this article we consider a stationary -dimensional Galerkin-Navier-Stokes type evolution with Brownian forcing and random stirring (of arbitrarily small strength that plays t…
Modified scattering dynamics in the Vlasov-Poisson equation near an attractive point mass
Bernhard Kepka, Klaus Widmayer
We study the long-time behavior of radially symmetric solutions to the Vlasov-Poisson equation consisting of an attractive point mass and a small, suitably localized and absolutely…
Increased lifespan for 3D compressible Euler flows with rotation
Haram Ko, Benoit Pausader, Ryo Takada +1
We consider the compressible Euler equation with a Coriolis term and prove a lower bound on the time of existence of solutions in terms of the speed of rotation, sound speed and si…
The cubic NLS on the line with an inverse square potential
Joachim Krieger, Wilhelm Schlag, Klaus Widmayer
We establish modified scattering for solutions of the cubic NLS on the line with a repulsive inverse square potential and small localized data. The method is based on a comparison…