Adaptive finite element method for an unregularized semilinear optimal control problem
Optimization and Control
2025-05-08 v1 Numerical Analysis
Numerical Analysis
Abstract
We devise an a posteriori error estimator for an affine optimal control problem subject to a semilinear elliptic PDE and control constraints. To approximate the problem, we consider a semidiscrete scheme based on the variational discretization approach. For this solution technique, we design an a posteriori error estimator that accounts for the discretization of the state and adjoint equations, and prove, under suitable local growth conditions of optimal controls, reliability and efficiency properties of such error estimator. A simple adaptive strategy based on the devised estimator is designed and its performance is illustrated with numerical examples.
Cite
@article{arxiv.2505.04439,
title = {Adaptive finite element method for an unregularized semilinear optimal control problem},
author = {Francisco Fuica and Nicolai Jork},
journal= {arXiv preprint arXiv:2505.04439},
year = {2025}
}