Abstract:
We consider facets of Klein polyhedra of a given integer-linear type $\mathscr T$ in a certain lattice. Let $E_\mathscr T(N,s)$ be the typical number of facets, averaged over all integral $s$-dimensional lattices with determinant $N$. Assume that the interior of any facet of type $\mathscr T$ contains at least one point of the corresponding lattice. We prove that
$$
E_\mathscr T(N,s)=C_\mathscr T \ln^{s-1}N+O_\mathscr T (\ln^{s-2} N \cdot \ln\ln N)
\quad\text{as } N \to \infty,
$$
where $C_\mathscr T$ is a positive constant depending only on $\mathscr T$.
Bibliography: 28 titles.
Keywords:lattice, Klein polyhedron, multidimensional continued fraction.