TY - JOUR T1 - Finite Element Method and Its Error Estimates for the Time Optimal Controls of Heat Equation JO - International Journal of Numerical Analysis and Modeling VL - 2 SP - 265 EP - 279 PY - 2016 DA - 2016/03 SN - 13 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/ijnam/438.html KW - Time optimal control problems, finite element method, error estimates. AB -

In this paper, we discuss the time optimal control problems governed by heat equation. The variational discretization concept is introduced for the approximation of the control, and the semi-discrete finite element method is applied for the controlled heat equation. We prove optimal a priori error estimate for the optimal time $T$, and quasi-optimal estimates for the optimal control $u$, the related state $y$ and adjoint state $p$.