Approximate Solutions of Fisher's Type Equations with Variable Coefficients | Zendy

A. H. Bhrawy | Zendy; Mohammed Alghamdi | Zendy

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Approximate Solutions of Fisher's Type Equations with Variable Coefficients

Author(s) -

A. H. Bhrawy,

Mohammed Alghamdi

Publication year - 2013

Publication title -

abstract and applied analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.228

H-Index - 56

eISSN - 1687-0409

pISSN - 1085-3375

DOI - 10.1155/2013/176730

Subject(s) - mathematics , collocation method , legendre polynomials , runge–kutta methods , collocation (remote sensing) , orthogonal collocation , ordinary differential equation , interpolation (computer graphics) , gauss , mathematical analysis , backward differentiation formula , nonlinear system , type (biology) , spectral method , numerical analysis , differential equation , animation , ecology , physics , remote sensing , computer graphics (images) , quantum mechanics , geology , computer science , biology

The spectral collocation approximations based on Legendre polynomials are used to compute the numerical solution of time-dependent Fisher’s type problems. The spatial derivatives are collocated at a Legendre-Gauss-Lobatto interpolation nodes. The proposed method has the advantage of reducing the problem to a system of ordinary differential equations in time. The four-stage A-stable implicit Runge-Kutta scheme is applied to solve the resulted system of first order in time. Numerical results show that the Legendre-Gauss-Lobatto collocation method is of high accuracy and is efficient for solving the Fisher’s type equations. Also the results demonstrate that the proposed method is powerful algorithm for solving the nonlinear partial differential equations

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