Extended finite element methods for optimal control problems governed by Poisson equation in non-convex domains
arXiv:1805.05789
Abstract
This paper analyzes two eXtended finite element methods (XFEMs) for linear quadratic optimal control problems governed by Poisson equation in non-convex domains. We follow the variational discretization concept to discretize the continuous problems, and apply an XFEM with a cut-off function and a classic XFEM with a fixed enrichment area to discretize the state and co-state equations. Optimal error estimates are derived for the state, co-state and control. Numerical results confirm our theoretical results.
arXiv commentarXiv admin note: text overlap with arXiv:1805.03944
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