12 citations · 41 across the 21 of their papers we have counts for
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Prime order isometries of unimodular lattices and automorphisms of ihs manifolds
Simon Brandhorst, Alberto Cattaneo
We characterize conjugacy classes of isometries of odd prime order in unimodular Z-lattices. This is applied to give a complete classification of odd prime order non-symplectic aut…
Extensions of maximal symplectic actions on K3 surfaces
Simon Brandhorst, Kenji Hashimoto
We classify pairs consisting of a complex K3 surface and a finite group such that the subgroup consisting of symplectic automorphisms is a…
On characteristic polynomials of automorphisms of Enriques surfaces
Simon Brandhorst, Sławomir Rams, Ichiro Shimada
Let be an automorphism of a complex Enriques surface and let denote the characteristic polynomial of the isometry of the numerical Néron-Severi lattice of i…
Borcherds' method for Enriques surfaces
Simon Brandhorst, Ichiro Shimada
We classify all primitive embeddings of the lattice of numerical equivalence classes of divisors of an Enriques surface with the intersection form multiplied by 2 into an even unim…