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DCG
2008
76views more  DCG 2008»
13 years 4 months ago
Asymmetry of Convex Polytopes and Vertex Index of Symmetric Convex Bodies
In [GL] it was shown that a polytope with few vertices is far from being symmetric in the Banach-Mazur distance. More precisely, it was shown that Banach-Mazur distance between su...
E. D. Gluskin, A. E. Litvak
DCG
2008
110views more  DCG 2008»
13 years 4 months ago
A Centrally Symmetric Version of the Cyclic Polytope
We define a centrally symmetric analogue of the cyclic polytope and study its facial structure. We conjecture that our polytopes provide asymptotically the largest number of faces...
Alexander I. Barvinok, Isabella Novik
DCG
2010
84views more  DCG 2010»
13 years 4 months ago
Matroid Polytopes and their Volumes
We express the matroid polytope PM of a matroid M as a signed Minkowski sum of simplices, and obtain a formula for the volume of PM . This gives a combinatorial expression for the...
Federico Ardila, Carolina Benedetti, Jeffrey Doker
DCG
2010
87views more  DCG 2010»
13 years 4 months ago
Hamiltonian Submanifolds of Regular Polytopes
: We investigate polyhedral 2k-manifolds as subcomplexes of the boundary complex of a regular polytope. We call such a subcomplex k-Hamiltonian if it contains the full k-skeleton o...
Felix Effenberger, Wolfgang Kühnel
CORR
2008
Springer
151views Education» more  CORR 2008»
13 years 4 months ago
Geometric Set Cover and Hitting Sets for Polytopes in $R^3$
Suppose we are given a finite set of points P in R3 and a collection of polytopes T that are all translates of the same polytope T. We consider two problems in this paper. The firs...
Sören Laue
IPCO
1992
112views Optimization» more  IPCO 1992»
13 years 5 months ago
The Metric Polytope
In this paper we study enumeration problems for polytopes arising from combinatorial optimization problems. While these polytopes turn out to be quickly intractable for enumeration...
Monique Laurent, Svatopluk Poljak
CCCG
2003
13 years 5 months ago
On the worst-case complexity of the silhouette of a polytope
We give conditions under which the worst-case size of the silhouette of a polytope is sub-linear.
Helmut Alt, Marc Glisse, Xavier Goaoc
CONCUR
1993
Springer
13 years 8 months ago
Loop Parallelization in the Polytope Model
During the course of the last decade, a mathematical model for the parallelization of FOR-loops has become increasingly popular. In this model, a (perfect) nest of r FOR-loops is r...
Christian Lengauer