Publications [#359942] of Bowen Li

Papers Published

1. Li, B; Zou, J, An adaptive edge element method and its convergence for an electromagnetic constrained optimal control problem, ESAIM: Mathematical Modelling and Numerical Analysis, vol. 55 no. 5 (September, 2021), pp. 2013-2044, EDP Sciences [doi]
   (last updated on 2024/04/18)

   Abstract:
   In this work, an adaptive edge element method is developed for anH(curl)-elliptic constrained optimal control problem. We use the lowest-order Nédélec’s edge elements of first family and the piecewise (element-wise) constant functions to approximate the state and the control, respectively, and propose a new adaptive algorithm with error estimators involving both residual-type error estimators and lower-order data oscillations. By using a local regular decomposition forH(curl)-functions and the standard bubble function techniques, we derive thea posteriorierror estimates for the proposed error estimators. Then we exploit the convergence properties of the orthogonalL2-projections and the mesh-size functions to demonstrate that the sequences of the discrete states and controls generated by the adaptive algorithm converge strongly to the exact solutions of the state and control in the energy-norm andL2-norm, respectively, by first achieving the strong convergence towards the solution to a limiting control problem. Three-dimensional numerical experiments are also presented to confirm our theoretical results and the quasi-optimality of the adaptive edge element method.