@Article{IJNAM-16-3, author = {Simon, Becher}, title = {FEM-Analysis on Graded Meshes for Turning Point Problems Exhibiting an Interior Layer}, journal = {International Journal of Numerical Analysis and Modeling}, year = {2019}, volume = {16}, number = {3}, pages = {499--518}, abstract = {
We consider singularly perturbed boundary value problems with a simple interior turning point whose solutions exhibit an interior layer. These problems are discretised using higher order finite elements on layer-adapted graded meshes proposed by Liseikin. We prove $ε$-uniform error estimates in the energy norm. Furthermore, for linear elements we are able to prove optimal order $ε$-uniform convergence in the $L$2-norm on these graded meshes.
}, issn = {2617-8710}, doi = {https://doi.org/2019-IJNAM-12879}, url = {https://global-sci.com/article/83074/fem-analysis-on-graded-meshes-for-turning-point-problems-exhibiting-an-interior-layer} }