4 papers
On symmetries of hyperbolic lattices of large rank
Torben Grabbel, Gebhard Martin, Giacomo Mezzedimi +2
For an even, integral hyperbolic lattice , the symmetry group of is the quotient of the group of isometries of by the Weyl subgroup of -reflections. Following Niku…
The Enriques surface of minimal entropy
Gebhard Martin, Giacomo Mezzedimi, Davide Cesare Veniani
Lehmer's number is the smallest dynamical degree greater than that can occur for an automorphism of an algebraic surface. We show that cannot be realized by a…
Virtually abelian symmetry groups of hyperbolic lattices
Simon Brandhorst, Markus Kirschmer, Giacomo Mezzedimi
We give a classification of integral lattices with virtually abelian symmetry group. As a consequence, we complete the classification of K3 surfaces with virtually abelian automorp…
The Kodaira dimension of some moduli spaces of elliptic K3 surfaces
Mauro Fortuna, Giacomo Mezzedimi
We study the moduli spaces of elliptic K3 surfaces of Picard number at least 3, i.e. -polarized K3 surfaces. Such moduli spaces are proved to be of gen…