Study of the formation of a charge separation at a plasma edge. Part II. Comparison between three different interpolation methods for the solution ofthe kinetic Vlasov equation

We have presented in the first part of this work (denoted by Part I) a stud y of the oscillation of a small charge separation at a plasma edge. In view of the sensitivity of this problem, this paper presents results obtained u sing two other methods recently published for the solution of the kinetic V lasov equation, namely the cubic interpolation propagator method, and the f lux conserving scheme method. For the problem we are studying both methods show the presence of important numerical diffusion compared to the results of Part I. (C) 2001 Elsevier Science B.V. All rights reserved.