Affiliation: | 1.Beluti M.K.M. High School, P.O. -Beluti, Dist. Birbhum, West Bengal-731301, India;2.Department of Mathematics, Siksha Bhavana Visva Bharati University, Santiniketan-731235, India;3.Plasma Physics Group, Theoretical Physics Laboratory, Faculty of Physics, University of Bab-Ezzouar, USTHB, B.P. 32, El Alia, Algiers 16111, Algeria |