Several types of solitary wave solutions (3 + 1)-dimensional nonlinear extended and modified quantum Zakharov–Kuznetsov equations are established successfully via the implantation three mathematical methods. The concerned models have many fruitful applications to describe waves in electron–positron–ion magnetoplasmas weakly ion-acoustic plasma. derived results MEAEM method, ESE F-expansion been...

Structure formation and wave phenomena in moderately coupled dusty plasmas." PhD (Doctor of Philosophy) thesis, ABSTRACT Dusty plasmas, defined as plasmas of ions, electrons, neutrals, and charged micron to sub-micron dust particles, support a rich diversity of physical states. These states (ranging from solids to liquids to gas) are determined by the ratio of the Coulomb potential energy betwe...

The spin-electron-acoustic waves (sometimes called the spin-plasmons) can be found in degenerate electron gas if spin-up electrons and spin down move relatively each other. Here, we suggest relativistic hydrodynamics with separate evolution which allows us to study linear nonlinear waves, including solitons. Presented hydrodynamic model is corresponding generalization of average reverse gamma f...

Abstract The characteristic behaviour of breathers as well N-order Rogue wave (RW) solution in homogeneous unmagnetized electron-positron-ion plasmas (consisting cold ions, and isothermal Maxwellian electrons positrons) has been studied theoretically. Nonlinear Schrödinger (NLS) equation is derived employing Krylov-Bogoliubov-Mitropolosky (KBM) perturbation technique solving the concerned probl...

We present a model that describes the decay of beam generated Langmuir waves into ion-acoustic waves in the topside ionosphere. This calculation is done within the frame of the weak turbulence approximation. We study the spectral signature of such a process as seen by a VHF incoherent scatter radar. An incoherent scatter (IS) spectrum is characterized by two maxima at kradar and ÿkradar, the ri...