Existence of best simultaneous approximations in L::p::(S, Σ, X)

Xian-Fa Luo, Chong Li, Hong-Kun Xu, Jen-Chih Yao. Existence of best simultaneous approximations in L::p::(S, Σ, X). Journal of Approximation Theory, 163(9):1300-1316, 2011. [doi]

Abstract

Abstract is missing.