To summarize, we have investigated the influence of an exter nal magnetic field on dust charge perturbations in a dusty plasma.
The equations are then used to investigate decay and modulational instabilities in magnetized dusty plasmas.
A lot of research work is being carried out in the area of dusty plasmas due to its applications in space, astrophysics and laboratory plasmas.
Thus, in this paper we investigate the effects of dust grain rotation on the surface dust-acoustic wave in a semi-bounded dusty plasma.
We are dealing with isothermal low-frequency (with respect to the dust g yrofrequency) dynamics in partially ionised dusty plasmas that are in ionisation equilibrium.
The effect of an exter nal magnetic field on an ion-dust two-stream instability in a collisional dusty plasma is investigated.
In dusty plasmas, the electron-neutral collision frequency is typically much smaller than the electron g yrofrequency.
However, they all neglect the dusty plasma aspect.
