Ekeland's ε-variational principle for set-valued mappings
- Cite this article as:
- Chen, G. & Huang, X. Mathematical Methods of OR (1998) 48: 181. doi:10.1007/s001860050020
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In this paper, we introduce the concept of approximate solutions for set-valued mappings and provide a sufficient condition for the existence of approximate solutions of set-valued mappings. We obtain an approximate variational principle for set-valued mappings.