Numerical treatment of singularly perturbed fourth-order two-parameter problems
[摘要] A singularly perturbed fourth-order problem with two small parameters is considered in one dimension and on a smooth domain in two dimensions. Using its discretisation by a mixed finite element method on a properly defined Shishkin mesh, we prove convergence in the associated energy norm.
[发布日期] [发布机构]
[效力级别] [学科分类] 数学(综合)
[关键词] singular perturbation;fourth-order problem;two small parameters;mixed method;layer-adapted meshes [时效性]