Smooth global solutions for the two dimensional Euler Poisson system

Details Smooth global solutions for the two dimensional Euler Poisson system Smooth global solutions for the two dimensional Euler Poisson system

2011-09-18

arxiv.org/abs/1109.3882v2

Mathematics

Analysis of PDEs

49 pages

Scientific paper

The Euler-Poisson system is a fundamental two-fluid model to describe the dynamics of the plasma consisting of compressible electrons and a uniform ion background. By using the dispersive Klein-Gordon effect, Guo \cite{Guo98} first constructed a global smooth irrotational solution in the three dimensional case. It has been conjectured that same results should hold in the two-dimensional case. The main difficulty in 2D comes from the slow dispersion of the linear flow and certain nonlocal resonant obstructions in the nonlinearity. In this paper we develop a new method to overcome these difficulties and construct smooth global solutions for the 2D Euler-Poisson system.

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