2 papers
math.CO2010
A Unified Combinatorial Approach to Several Poincare Series Identities
Paul Levande
Mendes recently conjectured an identity simplifying the Poincaré series of the space of equivariant polynomial maps from to a subrepresentation of $Sym^{2}(\mathbb…
math.CO2010★ 6 cited
Two New Interpretations of the Fishburn Numbers and their Refined Generating Functions
Paul Levande
We show that two classes of combinatorial objects--inversion tables with no subsequence of decreasing consecutive numbers and matchings with no 2-nestings--are enumerated by the Fi…