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math.MG2012★ 1 cited
Foldable Triangulations of Lattice Polygons
Michael Joswig, Günter M. Ziegler
We give a simple formula for the signature of a foldable triangulation of a lattice polygon in terms of its boundary. This yields lower bounds on the number of real roots of certai…
math.MG2012★ 1 cited
Face numbers of centrally symmetric polytopes from split graphs
Ragnar Freij, Matthias Henze, Moritz W. Schmitt +1
We analyze a remarkable class of centrally symmetric polytopes, the Hansen polytopes of split graphs. We confirm Kalai's 3^d-conjecture for such polytopes (they all have at least 3…