English

Cofinite Connectedness and Cofinite Group Actions

General Topology 2016-02-05 v1

Abstract

We have defined and established a theory of cofinite connectedness of a cofinite graph. Many of the properties of connectedness of topological spaces have analogs for cofinite connectedness. We have seen that if GG is a cofinite group and Gamma=Gamma(G,X) is the Cayley graph. Then Gamma can be given a suitable cofinite uniform topological structure so that XX generates GG, topologically iff Gamma is cofinitely connected. Our immediate next concern is developing group actions on cofinite graphs. Defining the action of an abstract group over a cofinite graph in the most natural way we are able to characterize a unique way of uniformizing an abstract group with a cofinite structure, obtained from the cofinite structure of the graph in the underlying action, so that the aforesaid action becomes uniformly continuous.

Keywords

Cite

@article{arxiv.1602.01782,
  title  = {Cofinite Connectedness and Cofinite Group Actions},
  author = {Amrita Acharyya and Jon M. Corson and Bikash Das},
  journal= {arXiv preprint arXiv:1602.01782},
  year   = {2016}
}
R2 v1 2026-06-22T12:43:45.732Z