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The document discusses a singularly perturbed two-point boundary-value problem of reaction-convection-diffusion type involving two small parameters, which create boundary layers of varying widths. It presents a robust a posteriori error estimate for the streamline-diffusion finite element method (SDFEM) that guarantees upper bounds for the discretization error, supported by numerical examples. The paper also explores the properties of the continuous problem, the SDFEM, and the development of adaptive mesh m
- Author
- shivaranjani
- Language
- EN