| Article ID: | iaor20128236 |
| Volume: | 155 |
| Issue: | 3 |
| Start Page Number: | 840 |
| End Page Number: | 854 |
| Publication Date: | Dec 2012 |
| Journal: | Journal of Optimization Theory and Applications |
| Authors: | Khanh P, Tung L |
| Keywords: | approximation, Ky Fan inequality |
We establish sufficient conditions for the local uniqueness of solutions to Ky Fan vector strong and weak inequalities. By using approximations as generalized derivatives, our results are valid even in cases where the maps involved in the problems suffer infinite discontinuity at the considered point. Corollaries and examples show that the results extend and improve existing ones in the literature.