Title
Note on the complexity of the mixed-integer hull of a polyhedron.
Abstract
We study the complexity of computing the mixed-integer hull conv(P∩(Zn×Rd)) of a polyhedron P. Given an inequality description, with one integer variable, the mixed-integer hull can have exponentially many vertices and facets in d. For n,d fixed, we give an algorithm to find the mixed-integer hull in polynomial time. Given a finite set V⊆Qn+d, with n fixed, we compute a vertex description of the mixed-integer hull of conv(V) in polynomial time and give bounds on the number of vertices of the mixed-integer hull.
Year
DOI
Venue
2015
10.1016/j.orl.2015.03.002
Operations Research Letters
Keywords
Field
DocType
Mixed-integer hull,Polyhedron,Mixed-integer concave minimization
Integer,Discrete mathematics,Combinatorics,Mathematical optimization,Finite set,Tight span,Vertex (geometry),Polyhedron,Time complexity,Hull,Mathematics
Journal
Volume
Issue
ISSN
43
3
0167-6377
Citations 
PageRank 
References 
2
0.42
8
Authors
3
Name
Order
Citations
PageRank
Robert Hildebrand1697.82
Timm Oertel2295.06
Robert Weismantel396490.05