A uniformly accurate finite element method for a singular perturbation problem in conservative form
SIAM Journal on Numerical Analysis
Splines difference methods for a singular perturbation problem
Applied Numerical Mathematics
Applied Numerical Mathematics
Application of least square method to arbitrary-order problems with separated boundary conditions
Journal of Computational and Applied Mathematics
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In this paper, we develop a numerical technique for singularly perturbed boundary value problems using B-spline functions and least square method. The approximate solution derived in this article is convergent to the exact solution and can be applied both to linear and nonlinear models. The numerical examples and computational results illustrate and guarantee a higher accuracy for this technique.