Highly accurate spline collocation technique for the numerical solution of generalized Burgers-Fisher’s problem

Document Type : Research Paper

Authors

Department of Mathematics, Sant Longowal Institute of Engineering and Technology, Punjab, India.

Abstract

This study employs the cubic B-spline collocation strategy to address the solution challenges posed by the nonlinear generalized Burgers-Fisher’s equation (gBFE), with some improvisation. This approach incorporates refinements within the spline interpolants, resulting in enhanced convergence rates along the spatial dimension. Temporal integration is achieved through the Crank-Nicolson methodology. The stability of the technique is assessed using the rigorous von Neumann method. Convergence analysis based on Green’s function reveals a fourth-order convergence along the space domain and a second-order convergence along the temporal domain. The results are validated by taking a number of examples. MATLAB 2017 is used for computational work.

Keywords

Main Subjects


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