2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85793In this paper we consider the influence of dust charge fluctuations on damping of the dust-ion-acoustic waves. Fluid approximation of longitudinal electrostatic waves in unmagnetized plasmas is considered. We show that for a weak acoustic wave the attenuation depends on a phenomenological charging coefficient.4 pagesPlasma PhysicsSpace Physicstext