output
19922026
most citedCatalog of Nearby Exoplanets

928 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2013 · math.COShow all

5 papers · 2 filters

math.CO2013★ 2 cited

The Chromatic Polynomials of Signed Petersen Graphs

Matthias Beck, Erika Meza, Bryan Nevarez +2

Zaslavsky proved in 2012 that, up to switching isomorphism, there are six different signed Petersen graphs and that they could be told apart by their chromatic polynomials, by show…

math.CO2013★ 4 cited

Positroids and non-crossing partitions

Federico Ardila, Felipe Rincón, Lauren Williams

We investigate the role that non-crossing partitions play in the study of positroids, a class of matroids introduced by Postnikov. We prove that every positroid can be constructed…

math.CO2013

Very ample and Koszul segmental fibrations

Matthias Beck, Jessica Delgado, Joseph Gubeladze +1

In the hierarchy of structural sophistication for lattice polytopes, normal polytopes mark a point of origin; very ample and Koszul polytopes occupy bottom and top spots in this hi…

math.CO2013

The arithmetic Tutte polynomials of the classical root systems

Federico Ardila, Federico Castillo, Michael Henley

Many combinatorial and topological invariants of a hyperplane arrangement can be computed in terms of its Tutte polynomial. Similarly, many invariants of a hypertoric arrangement c…

math.CO2013

Nowhere-Zero -Flows on Graphs

Matthias Beck, Alyssa Cuyjet, Gordon Rojas Kirby +2

We introduce and study a multivariate function that counts nowhere-zero flows on a graph G, in which each edge of G has an individual capacity. We prove that the associated countin…