The Regularity of Some Families of Circulant Graphs

We compute the Castelnuovo−Mumford regularity of the edge ideals of two families of circulant graphs, which includes all cubic circulant graphs. A feature of our approach is to combine bounds on the regularity, the projective dimension, and the reduced Euler characteristic to derive an exa...

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Main Authors: Miguel Eduardo Uribe-Paczka, Adam Van Tuyl
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/7/7/657
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author Miguel Eduardo Uribe-Paczka
Adam Van Tuyl
author_facet Miguel Eduardo Uribe-Paczka
Adam Van Tuyl
author_sort Miguel Eduardo Uribe-Paczka
collection DOAJ
description We compute the Castelnuovo−Mumford regularity of the edge ideals of two families of circulant graphs, which includes all cubic circulant graphs. A feature of our approach is to combine bounds on the regularity, the projective dimension, and the reduced Euler characteristic to derive an exact value for the regularity.
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spelling doaj.art-879b9e5c948942178e25f42dee20c8062022-12-21T17:59:24ZengMDPI AGMathematics2227-73902019-07-017765710.3390/math7070657math7070657The Regularity of Some Families of Circulant GraphsMiguel Eduardo Uribe-Paczka0Adam Van Tuyl1Departamento de Matemáticas, Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Mexico City 07300, MexicoDepartment of Mathematics and Statistics, McMaster University, Hamilton, ON L8S 4L8, CanadaWe compute the Castelnuovo−Mumford regularity of the edge ideals of two families of circulant graphs, which includes all cubic circulant graphs. A feature of our approach is to combine bounds on the regularity, the projective dimension, and the reduced Euler characteristic to derive an exact value for the regularity.https://www.mdpi.com/2227-7390/7/7/657circulant graphsedge idealsCastelnuovo–Mumford regularityprojective dimension
spellingShingle Miguel Eduardo Uribe-Paczka
Adam Van Tuyl
The Regularity of Some Families of Circulant Graphs
Mathematics
circulant graphs
edge ideals
Castelnuovo–Mumford regularity
projective dimension
title The Regularity of Some Families of Circulant Graphs
title_full The Regularity of Some Families of Circulant Graphs
title_fullStr The Regularity of Some Families of Circulant Graphs
title_full_unstemmed The Regularity of Some Families of Circulant Graphs
title_short The Regularity of Some Families of Circulant Graphs
title_sort regularity of some families of circulant graphs
topic circulant graphs
edge ideals
Castelnuovo–Mumford regularity
projective dimension
url https://www.mdpi.com/2227-7390/7/7/657
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