| Article ID: | iaor20134196 |
| Volume: | 158 |
| Issue: | 1 |
| Start Page Number: | 1 |
| End Page Number: | 10 |
| Publication Date: | Jul 2013 |
| Journal: | Journal of Optimization Theory and Applications |
| Authors: | Luan Shu |
| Keywords: | optimal control |
An optimal control problem governed by a class of semilinear elliptic equations is considered in this paper. Using relaxed controls, the nonexistence and existence results of an optimal control are obtained.