Spaces with a Finite Family of Basic Functions
Functional Analysis
2014-02-26 v1 General Topology
Abstract
A space X is finite dimensional, locally compact and separable metrizable if and only if X has a finite basic family: continuous functions Phi_1,...,Phi_n of X to the reals, R, such that for all continuous f from X to R there are g_1,..., g_n in C(R) satisfying f(x)=g_1(Phi_1(x))+g_2(Phi_2(x))+...+g_n(Phi_n(x)) for all x in X. This give the complete solution to four problems on basic functions posed by Sternfeld, as well as questions posed by Hattori and others.
Cite
@article{arxiv.0809.4733,
title = {Spaces with a Finite Family of Basic Functions},
author = {Paul Gartside and Feng Ziqin},
journal= {arXiv preprint arXiv:0809.4733},
year = {2014}
}