S. Fabre, STUDY OF AN APPROXIMATION MODEL ISSUED FROM PLASMA PHYSICS AND QUASI-NEUTRALITY, Mathematical models and methods in applied sciences, 6(7), 1996, pp. 887-900
In this paper, we study the existence and uniqueness in R(N) of Poisso
n's equation coupled with Boltzmann's relation which gives a particula
r expression of the electron's density. We also consider the case wher
e the ionic density vanishes. At last, an asymptotic analysis yields a
proof of the quasineutrality hypothesis of this model where the Debye
length can be neglected in comparison with the size of the system.