2 papers
math.CO2005
Lattices generated by skeletons of reflexive polytopes
Christian Haase, Benjamin Nill
Lattices generated by lattice points in skeletons of reflexive polytopes are essential in determining the fundamental group and integral cohomology of Calabi-Yau hypersurfaces. Her…
math.CO2003
Polar decomposition and Brion's theorem
Christian Haase
In this note we point out the relation between Brion's formula for the lattice point generating function of a convex polytope in terms of the vertex cones [Brion1988] on the one ha…