Cofinite graphs and their profinite completions

We generalize the idea of cofinite groups, due to B. Hartley, [2]. First we define cofinite spaces in general. Then, as a special situation, we study cofinite graphs and their uniform completions.The idea of constructing a cofinite graph starts with defining a uniform topological graph $\Gamma$, in...

Full description

Saved in:
Bibliographic Details
Main Authors: Acharyya, Amrita; Department of Mathematics and Statistics, University of Toledo (Author), Corson, Jon M; Department of Mathematics, University of Alabama (Author), Das, Bikash; Department of Mathematics, University of North Georgia (Author)
Format: EJournal Article
Published: GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB, 2017-10-16.
Subjects:
Online Access:Get Fulltext
Tags: Add Tag
No Tags, Be the first to tag this record!
LEADER 01985 am a22002653u 4500
001 EJGTA_222_pdf_60
042 |a dc 
100 1 0 |a Acharyya, Amrita; Department of Mathematics and Statistics, University of Toledo  |e author 
100 1 0 |e contributor 
700 1 0 |a Corson, Jon M; Department of Mathematics, University of Alabama  |e author 
700 1 0 |a Das, Bikash; Department of Mathematics, University of North Georgia  |e author 
245 0 0 |a Cofinite graphs and their profinite completions 
260 |b GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB,   |c 2017-10-16. 
500 |a https://www.ejgta.org/index.php/ejgta/article/view/222 
520 |a We generalize the idea of cofinite groups, due to B. Hartley, [2]. First we define cofinite spaces in general. Then, as a special situation, we study cofinite graphs and their uniform completions.The idea of constructing a cofinite graph starts with defining a uniform topological graph $\Gamma$, in an appropriate fashion. We endow abstract graphs with uniformities corresponding to separating filter bases of equivalence relations with finitely many equivalence classes over $\Gamma$. It is established that for any cofinite graph there exists a unique cofinite completion. 
540 |a Copyright (c) 2017 Electronic Journal of Graph Theory and Applications (EJGTA) 
546 |a eng 
690 |a profinite graph, cofinite graph, profinite group, cofinite group, uniform space, completion, cofinite entourage 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |a Peer-reviewed Article  |2 local 
786 0 |n Electronic Journal of Graph Theory and Applications (EJGTA); Vol 5, No 2 (2017): Electronic Journal of Graph Theory and Applications; 347-373 
786 0 |n 2338-2287 
787 0 |n https://www.ejgta.org/index.php/ejgta/article/view/222/pdf_60 
856 4 1 |u https://www.ejgta.org/index.php/ejgta/article/view/222/pdf_60  |z Get Fulltext