Solution of the Thomas-Fermi equation with a convergent approach

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• 作者：M. Turkyilmazoglu ; ^{turkyilm@hotmail.com}
• 关键词：Analytic solution ; Thomas&ndash ; Fermi equation ; Homotopy analysis method ; Computational cost ; Padé ; approximant
• 刊名：Communications in Nonlinear Science and Numerical Simulation
• 出版年：2012
• 期刊代码：89_10075704
• 类别：ph
• 出版时间：November, 2012
• 卷：17
• 期：11
• 页码：4097-4103
• 文件大小：267 K

摘要

The explicit analytic solution of the Thomas-Fermi equation thorough a new kind of analytic technique, namely the homotopy analysis method, was employed by Liao . However, the base functions and the auxiliary linear differential operator chosen were such that the convergence to the exact solution was fairly slow. New base functions and auxiliary linear operator to form a better homotopy are the main concern of the present paper. Optimum convergence control parameter concept is used together with a mathematical proof of the convergence.