| Article ID: | iaor19921943 | 
| Country: | Germany | 
| Volume: | 22 | 
| Start Page Number: | 855 | 
| End Page Number: | 868 | 
| Publication Date: | May 1991 | 
| Journal: | Optimization | 
| Authors: | Penot J.-P., Volle M. | 
The useful and classical question of the stability of approximate solutions to a parametrized minimization problem is revisited and examined under various facets. New notions of continuity for functions and multifunctions are involved in this study. Incidentally, a characterization of variational convergence is presented. Some persistence results complete this circular tour.