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On a 2-dimensional stationary free-boundary problem arising in the confinement of a plasma in a stellarator

Díaz Díaz, Jesús Ildefonso and Rakotoson, Jean Michel Theresien (1993) On a 2-dimensional stationary free-boundary problem arising in the confinement of a plasma in a stellarator. Comptes Rendus de l'Académie des Sciences. Série I. Mathématique , 317 (4). pp. 353-358. ISSN 0764-4442

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Abstract

We obtain the existence of solutions of a two-dimensional free boundary problem modelling the magnetic confinement of a plasma in a Stellarator configuration. The nonlinear elliptic equation was obtained from the 3-D MHD system by Hender and Carreras using averaging arguments and a suitable system of coordinates. The final formulation as a free boundary problem involves the notion of relative rearrangement and has important differences with respect to the model for Tokamaks configurations. We use an iterative algorithm and some new properties on relative rearrangement in order to prove the existence of a solution giving rise to a free boundary.

Item Type:Article
Uncontrolled Keywords:equilibrium
Subjects:Sciences > Mathematics > Differential equations
ID Code:16177
Deposited On:11 Sep 2012 07:58
Last Modified:08 May 2013 16:51

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