3 papers
math.AP2026
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…
math.AP2026
Long-time stability of a stably stratified rest state in the inviscid 2D Boussinesq equation
Catalina Jurja, Klaus Widmayer
We establish the nonlinear stability on a timescale of a linearly, stably stratified rest state in the inviscid Boussinesq system on . Here $\va…
math.AP2025
The effect of linear stratification on the stability of a rest state in the 2D inviscid Boussinesq system
Catalina Jurja, Haram Ko
We investigate and quantify the effect of stratification on the stability time of a stably stratified rest state for the 2D inviscid Boussinesq system on . As an impo…