The Generalized Baues Problem for Cyclic Polytopes II


Christios_A. Athanasiadis, Jörg Rambau, Francisco Santos


Given an affine surjection of polytopes $\pi: P \to Q$, the Generalized Baues Problem asks whether the poset of all proper polyhedral subdivisions of $Q$ which are induced by the map $\pi$ has the homotopy type of a sphere. We extend earlier work of the last two authors on subdivisions of cyclic polytopes to give an affirmative answer to the problem for the natural surjections between cyclic polytopes $\pi:C(n,d')\to C(n,d)$ for all $1\leq d