Approximation functions to the emden and associated emden functions near the first zero, II
نویسندگان
چکیده
منابع مشابه
Variational approach to the Lane-Emden equation
By the semi-inverse method, a variational principle is obtained for the Lane–Emden equation, which gives much numerical convenience when applying finite element methods or Ritz method. 2002 Elsevier Science Inc. All rights reserved.
متن کاملNumerical Solution of Singular IVPs of Lane-Emden Type Using Integral Operator and Radial Basis Functions
متن کامل
A Numerical Method for Lane-Emden Equations Using Hybrid Functions and the Collocation Method
A numerical method to solve Lane-Emden equations as singular initial value problems is presented in this work. This method is based on the replacement of unknown functions through a truncated series of hybrid of block-pulse functions and Chebyshev polynomials. The collocation method transforms the differential equation into a system of algebraic equations. It also has application in a wide area...
متن کاملThe Generalized Emden-Fowler Equation
We give the description of nonlinear nonautonomous ordinary differential equations of order n with a so-called reducible linear part. The group classification of generalized Emden-Fowler equations of the mentioned class is done. We have found such laws of the variation of f(x) that the equation admits one, two, or tree one-parameter Lie groups.
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ژورنال
عنوان ژورنال: Astrophysics and Space Science
سال: 1977
ISSN: 0004-640X,1572-946X
DOI: 10.1007/bf00651372