Article
Keywords:
distance functions and inequality relations; closure operators and Galois connections; Lipschitz and monotone functions; fixed points
Summary:
Following the ideas of R. DeMarr, we establish a Galois connection between distance functions on a set $S$ and inequality relations on $X_{S}=S \times \mathbb{R}$. Moreover, we also investigate a relationship between the functions of $S$ and $X_{S}$.
References:
                        
[1] Birkhoff, G.: 
Lattice Theory. Amer. Math. Soc. Colloq. Publ. 25, Providence, Rhode Island, 1967. 
MR 0598630 | 
Zbl 0153.02501[4] Fletcher, P., Lindgren, W. F.: 
Quasi-Uniform Spaces. Marcel Dekker, New York, 1982. 
MR 0660063[5] Jachymski, J. R.: 
Fixed point theorems in metric and uniform spaces via the Knaster-Tarski principle. Nonlinear Anal. 32 (1998), 225–233. 
MR 1491625[10] Szász, G.: 
Introduction to Lattice Theory. Academic Press, New York, 1963. 
MR 0166118