%0 Journal Article %A O. Galdames-Bravo %T Ky Fan's Lemma for Metric Spaces and an Approximation to the Goldbach's Problem %J Journal of convex analysis %D 2024 %P 265-277 %V 31 %N 1 %U http://geodesic.mathdoc.fr/item/JCA_2024_31_1_JCA_2024_31_1_a15/ %F JCA_2024_31_1_JCA_2024_31_1_a15