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» Realizations of the Associahedron and Cyclohedron
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DCG
2007
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14 years 9 months ago
Realizations of the Associahedron and Cyclohedron
Abstract. We describe many different realizations with integer coordinates for the associahedron (i.e. the Stasheff polytope) and for the cyclohedron (i.e. the Bott-Taubes polyto...
Christophe Hohlweg, Carsten E. M. C. Lange
EJC
2006
14 years 9 months ago
The positive Bergman complex of an oriented matroid
We study the positive Bergman complex B+ (M) of an oriented matroid M, which is a certain subcomplex of the Bergman complex B(M) of the underlying unoriented matroid M. The positiv...
Federico Ardila, Caroline J. Klivans, Lauren Willi...