TITLE:
An Approximation Algorithm for the solution of astrophysics equations using rational scaled generalized Laguerre function collocation method based on transformed Hermite-Gauss nodes
AUTHORS:
Ali Pirkhedri, Parisa Daneshjoo, Hamid Haj Seyyed Javadi, Hamid Navidi, Salem Khodamoradi, Kamal Ghaderi
KEYWORDS:
Lane-Emden equation, Generalized Laguerre functions, Collocation method, Hermite-Gauss nodes, Nonlinear ODE, Semi-infinite
JOURNAL NAME:
International Journal of Astronomy and Astrophysics,
Vol.1 No.2,
June
30,
2011
ABSTRACT: In this paper we propose a collocation method for solving Lane-Emden type equation which is nonlinear or-dinary differential equation on the semi-infinite domain. This equation is categorized as singular initial value problems. We solve this equation by the generalized Laguerre polynomial collocation method based on Her-mite-Gauss nodes. This method solves the problem on the semi-infinite domain without truncating it to a fi-nite domain and transforming domain of the problem to a finite domain. In addition, this method reduces so-lution of the problem to solution of a system of algebraic equations.