some remarks on the paper ”global optimization in metric spaces with partial orders

The aim of this note is to show that the main conclusion of a recent paper by sadiq basha [s. sadiq basha, global optimization in metric spaces with partial orders, optimization, 63 (2014), 817-825] can be obtained as a consequence of corresponding existing results in fixed point theory in the setting of partially ordered metric spaces. moreover, by a similar approach, we prove that in the paper [v. pragadeeswarar, m. marudai, best proximity points: approximation and optimization in partially ordered metric spaces, optim. lett. 7 (2013), 1883–1892] the results are not real generalizations but particular cases of existing fixed point theorems in the literature.