12 citations · 41 across the 21 of their papers we have counts for
3 papers · 1 filter
On hyperbolic lattices whose reduced automorphism group is virtually abelian
Simon Brandhorst, Markus Kirschmer, Giacomo Mezzedimi
We give a classification of even integral lattices with virtually abelian reduced automorphism group. As a consequence, we complete the classification of K3 surfaces with virtually…
Orbits of smooth rational curves on Enriques surfaces
Simon Brandhorst, Víctor González-Alonso
We give a closed formula for the number of orbits of smooth rational curves under the automorphism group of an Enriques surface in terms of its Nikulin root invariant and its Vinbe…
An explicit Enriques surface with an automorphism of minimum entropy
Simon Brandhorst, Matthias Zach
We derive explicit equations for the Oguiso-Yu automorphism of minimum topological entropy on a complex Enriques surface. The approach is computer aided and makes use of elliptic f…