2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85817We review the analytical methods of solving the stochastic equations for barrier-type dynamical behavior in plasma systems. The path-integral approach is examined as a particularly efficient method of determination of the statistical properties.Latex 75 pages including 58 eps figures of poor quality. For better figures please download a ps file as http://florin.spineanu.free.fr/sciarchive/topicalreview.zipPlasma PhysicsChemical Physicstext