Abstract
This study proposes a uniformly convergent finite difference scheme on a uniform mesh to solve singularly perturbed boundary value problems for second-order ordinary differential-difference equation of the convection-diffusion type. Error estimates are produced for the proposed numerical scheme. The theoretical results are supported by numerical simulations of test problems.
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Acknowledgements
The authors wish to thank the National Board for Higher Mathematics, Department of Atomic Energy, Government of India, for their financial support under the project No. 02011/8/2021 NBHM(R.P)/R &D II/7224, dated 24.06.2021.Authors are grateful to the anonymous referees for their valuable suggestions and comments that improved the quality of this paper.
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Both the authors RNR, PT, have contributed equally to this work.
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Prathap, T., Rao, R.N. A Higher Order Finite Difference Method for a Singularly Perturbed Boundary Value Problem with a Small Negative Shift. Int. J. Appl. Comput. Math 9, 101 (2023). https://doi.org/10.1007/s40819-023-01578-4
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DOI: https://doi.org/10.1007/s40819-023-01578-4
Keywords
- Singular perturbation problem
- Second order differential equation
- Convection-diffusion
- Differential-difference equation
- Numerical method