Divisibility orders in $\beta N$
Logic
2016-05-18 v2
Abstract
We consider five divisibility orders on the Stone-\v{C}ech compactification . We find antichains of incompatible elements, and characterize maximal and minimal elements. The main result shows that two of these relations, and , are strictly stronger than the Rudin-Keisler order.
Keywords
Cite
@article{arxiv.1511.01731,
title = {Divisibility orders in $\beta N$},
author = {Boris Šobot},
journal= {arXiv preprint arXiv:1511.01731},
year = {2016}
}