Title
Separating hyperplanes of edge polytopes
Abstract
Let G be a finite connected simple graph with d vertices and let P"G@?R^d be the edge polytope of G. We call P"Gdecomposable if P"G decomposes into integral polytopes P"G"^"+ and P"G"^"- via a hyperplane. In this paper, we explore various aspects of decomposition of P"G: we give an algorithm deciding the decomposability of P"G, we prove that P"G is normal if and only if both P"G"^"+ and P"G"^"- are normal, and we also study how a condition on the toric ideal of P"G (namely, the ideal being generated by quadratic binomials) behaves under decomposition.
Year
DOI
Venue
2013
10.1016/j.jcta.2012.08.002
J. Comb. Theory, Ser. A
Keywords
Field
DocType
g decomposes,quadratic binomials,toric ideal,integral polytopes p,separating hyperplanes,various aspect,edge polytope,edge polytopes,finite connected simple graph
Discrete mathematics,Graph,Combinatorics,Vertex (geometry),Quadratic equation,Polytope,Hyperplane,Function composition,Mathematics
Journal
Volume
Issue
ISSN
120
1
0097-3165
Citations 
PageRank 
References 
2
0.56
2
Authors
3
Name
Order
Citations
PageRank
Takayuki Hibi19430.08
Nan Li251.85
Yan X. Zhang321.57