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FIZIKA A 16 (2007) 1 , 11-24
 
GENERAL THEORY OF HIGHER-ORDER CORRECTIONS TO SOLITARY WAVES IN A
MULTICOMPONENT PLASMA
K. K. MONDAL
Faculty of Science, Sovarani Memorial College, Jagatballavpur,
Howrah, West Bengal, Pin-711408, India
E-mail address: kalyan_mondal@vsnl.net
Received 20 April 2006; Accepted 20
September 2006
Online 22 May 2007
A generalized theory on the combined effects of ion-temperature, negative ions
and higher-order corrections on ion-acoustic solitary waves in a multicomponent
plasma containing warm, relativistic positive ions and negative ions,
two-temperature and non-isothermal electrons has been made using reductive
perturbation method. The basic set of fluid equations for the warm ion-fluids
have been reduced to the renormalized Korteweg-de-Vries equation for the
first-order perturbed potential and then a renormalized linear inhomogeneous
equation for the second-order perturbed potential. Steady-state solutions of the
coupled equations have been derived and eventually the solution representing the
potential associated with the ion-acoustic wave has been obtained. The soliton
profiles have been displayed graphically under various conditions.
PACS numbers: 52.35 Fp, 52.35 Mw, 52.35 Sb
UDC 533.951
Keywords: ion-acoustic solitary waves, multicomponent plasma, non-isothermal
electrons, K-dV equation
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