| Article ID: | iaor20124137 |
| Volume: | 53 |
| Issue: | 2 |
| Start Page Number: | 203 |
| End Page Number: | 214 |
| Publication Date: | Jun 2012 |
| Journal: | Journal of Global Optimization |
| Authors: | Mastroeni G |
| Keywords: | vector optimization |
In this paper, we extend the image space analysis to a vector quasi‐equilibrium problem (VQEP) with a variable ordering relation and we analyse scalar and vector saddle point optimality conditions arising from the existence of a vector separation in the image space associated with VQEP.