Spectral Method for Solving the Nonlinear Thomas-Fermi Equation Based on Exponential Functions
Joint Authors
Alharbi, Fahhad H.
Jovanovic, Raka
Kais, Sabre
Source
Journal of Applied Mathematics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-11-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We present an efficient spectral methods solver for the Thomas-Fermi equation for neutral atoms in a semi-infinite domain.
The ordinary differential equation has been solved by applying a spectral method using an exponential basis set.
One of the main advantages of this approach, when compared to other relevant applications of spectral methods, is that the underlying integrals can be solved analytically and numerical integration can be avoided.
The nonlinear algebraic system of equations that is derived using this method is solved using a minimization approach.
The presented method has shown robustness in the sense that it can find high precision solution for a wide range of parameters that define the basis set.
In our test, we show that the new approach can achieve a very high rate of convergence using a small number of bases elements.
We also present a comparison of recently published results for this problem using spectral methods based on several different basis sets.
The comparison shows that our method is highly competitive and in many aspects outperforms the previous work.
American Psychological Association (APA)
Jovanovic, Raka& Kais, Sabre& Alharbi, Fahhad H.. 2014. Spectral Method for Solving the Nonlinear Thomas-Fermi Equation Based on Exponential Functions. Journal of Applied Mathematics،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1037737
Modern Language Association (MLA)
Jovanovic, Raka…[et al.]. Spectral Method for Solving the Nonlinear Thomas-Fermi Equation Based on Exponential Functions. Journal of Applied Mathematics No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1037737
American Medical Association (AMA)
Jovanovic, Raka& Kais, Sabre& Alharbi, Fahhad H.. Spectral Method for Solving the Nonlinear Thomas-Fermi Equation Based on Exponential Functions. Journal of Applied Mathematics. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1037737
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1037737