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    • Keywords


      Dust charge fluctuation; unmagnetized dust plasma; KP equation; long-wave perturbations.

    • Abstract


      In this work, we investigate the propagation of three-dimensional nonlinear dust-acoustic and dust-Coulomb waves in an unmagnetized warm dusty plasma consisting of electrons, ions, and charged dust particles. The grain charge fluctuation is incorporated through the current balance equation. Using the perturbation method, a Kadomtsev–Petviashvili (KP) equation is obtained. It has been shown that the charge fluctuation would modify the wave structures, and the waves in such systems are unstable due to high-order long wave perturbations.

    • Author Affiliations


      Kh. H. El-Shorbagy1 2 Hania Mahassen3 Atef Ahmed El-Bendary4

      1. Department of Mathematics, King AbdulAziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia.
      2. Plasma Physics and Nuclear Fusion Department, Nuclear Research Center, Atomic Energy Authority, P. O. Box 13759, Cairo, Egypt.
      3. Mathematics Division, School of Arts and Sciences, American University in Dubai, P. O. Box 28282, Dubai, UAE.
      4. Physics Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
    • Dates

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