Zhou, Jianwei; Yang, Danping - In: Computational Optimization and Applications 61 (2015) 1, pp. 135-158
<Para ID="Par1">In this paper, we investigate the optimal control problems governed by elliptic equations with integral constraint for state variable in one dimension by Legendre–Galerkin spectral methods. We deduce optimal conditions of the optimal control problems. Meanwhile, we obtain an a priori error...</para>