Wednesday, June 5, 17:00 and 18:30, room 306
shinymath, · Categories: Без рубрикиNext Wednesday we have no talks, and this Wednesday we shall see two points of view towards the important phenomenon of hollow polytopes: lattice polytopes whose interior avoids the lattice.
17:00 Vjacheslav Zhukov: Maximal lattice-free polyhedra: finiteness and an explicit description in dimension three
We shall study lattice poyhedra whose interior avoids a given
sublattice. The number of maximal (by inclusion) polyhedra of this type
is finite modulo authomorphisms of the lattice. We shall prove this fact
and see how to classify such polyhedra in dimension
3.
18:30 Evgeniy Pavlov: Hollow Convex Polytopes
This is the second talk in a series of lectures devoted to the study of
convex bodies and polyhedra without interior lattice points. In this
part we combine the results of Kannan, Lovasz and Pikhurko to show that
every hollow lattice d-polytope either admits
a projection onto a hollow lattice (d-1)-polytope, or belongs to one of
finitely many exceptions.