Some Results on Best Approximations without star-shaped
Nadaa Moreah Atheab Albadry · Journal of Wasit for Science and Medicine · 2022
In this paper, we give two theorems in Banach space. The first one is about the existence of a fixed point for generalized affine mapping, and a class of relatively nonexpansive commutative mappings and then we use it in the proof of theorem about existence of best approximation.