@Article{NMTMA-13-4, author = {Yanping, Chen and Zhou, Zhaojie and Song, Jiabin and Yanping, Chen}, title = {Finite Element Approximation of Space Fractional Optimal Control Problem with Integral State Constraint}, journal = {Numerical Mathematics: Theory, Methods and Applications}, year = {2020}, volume = {13}, number = {4}, pages = {1027--1049}, abstract = {
In this paper finite element approximation of space fractional optimal control problem with integral state constraint is investigated. First order optimal condition and regularity of the control problem are discussed. A priori error estimates for control, state, adjoint state and lagrange multiplier are derived. The nonlocal property of the fractional derivative results in a dense coefficient matrix of the discrete state and adjoint state equation. To reduce the computational cost a fast projection gradient algorithm is developed based on the Toeplitz structure of the coefficient matrix. Numerical experiments are carried out to illustrate the theoretical findings.
}, issn = {2079-7338}, doi = {https://doi.org/10.4208/nmtma.OA-2019-0201}, url = {https://global-sci.com/article/90379/finite-element-approximation-of-space-fractional-optimal-control-problem-with-integral-state-constraint} }