Abstract
This paper studies \(\varepsilon \)-efficiency in multiobjective optimization by using the so-called coradiant sets. Motivated by the nonlinear separation property for cones, a similar separation property for coradiant sets is investigated. A new notion, called Bishop–Phelps coradiant set is introduced and some appropriate properties of this set are studied. This paper also introduces the notions of \(\varepsilon \)-dual and augmented \(\varepsilon \)-dual for Bishop and Phelps coradiant sets. Using these notions, some scalarization and characterization properties for \(\varepsilon \)-efficient and proper \(\varepsilon \)-efficient points are proposed.


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Sayadi-bander, A., Pourkarimi, L., Kasimbeyli, R. et al. Coradiant sets and \(\varepsilon \)-efficiency in multiobjective optimization. J Glob Optim 68, 587–600 (2017). https://doi.org/10.1007/s10898-016-0495-4
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DOI: https://doi.org/10.1007/s10898-016-0495-4