Title
Bounds on the regularity of toric ideals of graphs
Abstract
Let G be a finite simple graph. We give a lower bound for the Castelnuovo–Mumford regularity of the toric ideal IG associated to G in terms of the sizes and number of induced complete bipartite graphs in G. When G is a chordal bipartite graph, we find an upper bound for the regularity of IG in terms of the size of the bipartition of G. We also give a new proof for the graded Betti numbers of the toric ideal associated to the complete bipartite graph K2,n.
Year
DOI
Venue
2017
10.1016/j.aam.2016.11.003
Advances in Applied Mathematics
Keywords
Field
DocType
14M25,13D02,05E40,52B22
Discrete mathematics,Topology,Complete bipartite graph,Combinatorics,Outerplanar graph,Edge-transitive graph,Forbidden graph characterization,Robertson–Seymour theorem,Chordal bipartite graph,Bipartite graph,Triangle-free graph,Mathematics
Journal
Volume
ISSN
Citations 
85
0196-8858
0
PageRank 
References 
Authors
0.34
3
3
Name
Order
Citations
PageRank
Jennifer Biermann100.68
Augustine O'Keefe200.34
Adam Van Tuyl3154.32