Abstract
First order and second order characterizations of pseudolinear functions are derived. For a nonlinear programming problem involving pseudolinear functions only, it is proved that every efficient solution is properly efficient under some mild conditions.
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Chew, K.L., Choo, E.U. Pseudolinearity and efficiency. Mathematical Programming 28, 226–239 (1984). https://doi.org/10.1007/BF02612363
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DOI: https://doi.org/10.1007/BF02612363