... Radwan, AE: Electrogravitational instability of an annular fluid jet coaxial with a very dense fluid cylinder under radial varying fields. J Plasma phys. 44, 455–465 (1991)5. Radwan, AE, Hasan, ... Hasan, AA: Axisymmetric electrogravitational stability of fluid cylinder ambient with transverse varying oscillating field, (IAENG). Int J Appl Math. 38(3):113–120 (2008)6. Radwan, AE, Hasan, AA: ... 2011:31http://www.boundaryvalueproblems.com/content/2011/1/31Page 7 of 14RESEARCH Open Access Electrogravitational stability of oscillating streaming fluid cylinder ambient with a transverse varying electric field Alfaisal...