English

On the category of profinite spaces as a reflective subcategory

Commutative Algebra 2012-07-26 v1 General Topology

Abstract

In this paper by using the ring of real-valued continuous functions C(X)C(X), we prove a theorem in profinite spaces which states that for a compact Hausdorff space XX, the set of its connected components X/X/_{\sim} endowed with some topology T\mathscr{T} is a profinite space. Then we apply this result to give an alternative proof to the fact that the category of profinite spaces is a reflective subcategory in the category of compact Hausdorff spaces. Finally, under some circumstances on a space XX, we compute the connected components of the space t(X)t(X) in terms of the ones of the space XX.

Keywords

Cite

@article{arxiv.1207.5963,
  title  = {On the category of profinite spaces as a reflective subcategory},
  author = {Abolfazl Tarizadeh},
  journal= {arXiv preprint arXiv:1207.5963},
  year   = {2012}
}