2 papers
math.CO2005
Unimodality and convexity of f-vectors of polytopes
Axel Werner
We consider unimodality and related properties of f-vectors of polytopes in various dimensions. By a result of Kalai (1988), f-vectors of 5-polytopes are unimodal. In higher dimens…
math.CO2005
Constructions for 4-Polytopes and the Cone of Flag Vectors
Andreas Paffenholz, Axel Werner
We describe a construction for d-polytopes generalising the well known stacking operation. The construction is applied to produce 2-simplicial and 2-simple 4-polytopes with g_2=0 o…