2 papers
math.CO2003
Construction techniques for cubical complexes, odd cubical 4-polytopes, and prescribed dual manifolds
Alexander Schwartz, Guenter M. Ziegler
We provide a number of new construction techniques for cubical complexes and cubical polytopes, and thus for cubifications (hexahedral mesh generation). As an application we obtain…
math.CO2001
On the Complexity of Polytope Isomorphism Problems
Volker Kaibel, Alexander Schwartz
We show that the problem to decide whether two (convex) polytopes, given by their vertex-facet incidences, are combinatorially isomorphic is graph isomorphism complete, even for si…