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Euclideaness and final polynomials in oriented matroid theory

✍ Scribed by Jürgen Richter-Gebert


Publisher
Springer-Verlag
Year
1993
Tongue
English
Weight
473 KB
Volume
13
Category
Article
ISSN
0209-9683

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Cocircuit Graphs and Efficient Orientati
✍ Eric Babson; Lukas Finschi; Komei Fukuda 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 294 KB

We consider the cocircuit graph G M of an oriented matroid M, which is the 1-skeleton of the cell complex formed by the span of the cocircuits of M. As a result of Cordovil, Fukuda, and Guedes de Oliveira, the isomorphism class of M is not determined by G M , but it is determined if M is uniform and