| Article ID: | iaor19942451 |
| Country: | Germany |
| Volume: | 28 |
| Start Page Number: | 1 |
| End Page Number: | 7 |
| Publication Date: | Aug 1993 |
| Journal: | Optimization |
| Authors: | Craven B.D., Janin R. |
For perturbed constrained optimization, the optimal value function is shown to have the semismooth property, and expressions are given for its directional derivative, not assuming the optimum to be unique.