English

Some more algebra on ultrafilters in metric spaces

General Topology 2018-02-15 v1

Abstract

We continue algebraization of the set of ultrafilters on a metric spaces initiated in [6]. In particular, we define and study metric counterparts of prime, strongly prime and right cancellable ultrafilters from the Stone-Cˇ\check{C}ech compactification of a discrete group as a right topological semigroup [3]. Our approach is based on the concept of parallelity introduced in the context of balleans in [4].

Keywords

Cite

@article{arxiv.1802.05224,
  title  = {Some more algebra on ultrafilters in metric spaces},
  author = {Igor Protasov},
  journal= {arXiv preprint arXiv:1802.05224},
  year   = {2018}
}

Comments

metric space, ultrafilter, ball invariance, parallelity, prime and strongly prime ultrafilters