Abstract
Recently, various concepts of D-η-properly prequasi-invex functions were introduced and characterizations of D-η-properly prequasi-invex functions were presented under a certain set of conditions. In this paper, we show that the same results can be obtained under weaker assumptions.
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The research was partially supported by the National Natural Science Foundation of China under Grants No. 60473097 and 70671064.
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Wu, H., Luo, H. On Characterizations of D-η-Properly Prequasi-Invex Function. Jrl Syst Sci & Complex 20, 614–622 (2007). https://doi.org/10.1007/s11424-007-9060-z
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DOI: https://doi.org/10.1007/s11424-007-9060-z