5 citations · 5 across the 2 of their papers we have counts for
2 papers
math.CO2004
The Positive Bergman Complex of an Oriented Matroid
Federico Ardila, Caroline Klivans, Lauren Williams
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. The positive B…
math.CO2003★ 5 cited
The Bergman complex of a matroid and phylogenetic trees
Federico Ardila, Carly Klivans
We study the Bergman complex B(M) of a matroid M: a polyhedral complex which arises in algebraic geometry, but which we describe purely combinatorially. We prove that a natural sub…