1 citations · 1 across the 2 of their papers we have counts for
Showing math.COShow all
2 papers · 1 filter
math.CO2020★ 1 cited
Poset subdivisions and the mixed cd-index
Patrick Dornian, Eric Katz, Ling Hei Tsang
The cd-index is an invariant of Eulerian posets expressed as a polynomial in noncommuting variables c and d. It determines another invariant, the h-polynomial. In this paper, we st…
math.CO2016
Subdividing the cd-index of Eulerian Posets
Patrick Dornian
This thesis aims to give the reader an introduction and overview of the cd-index of a poset, as well as establish some new results. We give a combinatorial proof of Ehrenborg and K…