Doc.Math. J. DMV 137 Two Interesting Oriented Matroids J urgen Richter-Gebert (2007)
Communicated Gunter, M. Ziegler
Abstract. Oriented matroids are a combinatorial model for configurations in real vector spaces. A central role in the theory is played by the realizability problem: Given an oriented matroid, find an...
Serkan Hosten, Francisco Santos, Bernd Sturmfels, Communicated Gunter, M. Ziegler
Abstract. We study the convex hull PA of the 0-1 incidence vectors of all triangulations of a point configuration A. This was called the universal polytope in [4]. The affine span of PA is described...