48 citations · 52 across the 4 of their papers we have counts for
4 papers
Homological combinatorics and extensions of the cd-index
MLE Slone
Many combinatorial proofs rely on induction. When these proofs are formulated in traditional language, they can be bulky and unmanageable. Coalgebras provide a language which can r…
A conjectured bound on the spanning tree number of bipartite graphs
MLE Slone
The Ferrers bound conjecture is a natural graph-theoretic extension of the enumeration of spanning trees for Ferrers graphs. We document the current status of the conjecture and pr…
A geometric approach to acyclic orientations
Richard Ehrenborg, MLE Slone
The set of acyclic orientations of a connected graph with a given sink has a natural poset structure. We give a geometric proof of a result of Jim Propp: this poset is the disjoint…
Affine and toric hyperplane arrangements
Richard Ehrenborg, Margaret Readdy, MLE Slone
We extend the Billera-Ehrenborg-Readdy map between the intersection lattice and face lattice of a central hyperplane arrangement to affine and toric hyperplane arrangements. For ar…