| Article ID: | iaor2004741 |
| Country: | United States |
| Volume: | 27 |
| Issue: | 4 |
| Start Page Number: | 775 |
| End Page Number: | 791 |
| Publication Date: | Nov 2002 |
| Journal: | Mathematics of Operations Research |
| Authors: | Yang X.Q., Huang X.X., Rubinov A.M. |
We examine the validity of the zero duality gap properties for two important dual schemes: a generalized augmented Lagrangian dual scheme and a nonlinear Lagrange-type dual scheme. The necessary and sufficient conditions for the zero duality gap property to hold are established in terms of the lower semicontinuity of the perturbation functions.