| Article ID: | iaor1998422 |
| Country: | Netherlands |
| Volume: | 19 |
| Issue: | 3 |
| Start Page Number: | 79 |
| End Page Number: | 86 |
| Publication Date: | Aug 1996 |
| Journal: | Operations Research Letters |
| Authors: | Castellani Marco |
Generalized second-order directional derivatives for nonsmooth real-valued functions are studied and their connections with second-order variational sets are investigated. A necessary second-order optimality condition for problems with inequality constraints is obtained.