Focus on sufficient optimality conditions in D.C. vector optimization

<i>ε</i>-weak Pareto minimality in D. C. vector optimization

“…Nonconvex mappings arising in nonsmooth optimization are frequently of this type. Extensive work on the analysis and optimization of DC mappings has been done in recent years [1,2,3,4,5,6,7,11]. However, there is still a lot of work to be done, such as the investigation of ε-approximate solutions in the Pareto sense for vector optimization problems.…”

“…Unfortunately, their main result turned out to be false and was corrected by Shafie and Bozorgnia in [11]. Recently, Gadhi [2] pointed out that Shafie and Bozorgnia's proposed improvement is also incorrect, rectified the errors, and gave an alternate proof for the main result.…”