English Selection theorem Cited by user Cosmia Nebula on 25 Dec 2022 In functional analysis, a branch of mathematics, a selection theorem is a theorem that guarantees the existence of a single-valued selection function from a given multi-va…
English Kakutani fixed-point theorem Cited by user Cosmia Nebula on 25 Dec 2022 In mathematical analysis, the Kakutani fixed-point theorem is a fixed-point theorem for set-valued functions.