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math.CO2006★ 1 cited
Decomposition theorem for the cd-index of Gorenstein* posets
Richard Ehrenborg, Kalle Karu
We prove a decomposition theorem for the cd-index of a Gorenstein* poset analogous to the decomposition theorem for the intersection cohomology of a toric variety. From this we set…
math.AG2006
Ehrhart analogue of the h-vector
Kalle Karu
We consider a formula of Stanley that expresses the Ehrhart generating polynomial of a polyhedral complex in terms of the h-polynomials of toric varieties. We prove that the coeffi…