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math.AG2023
On families of K3 surfaces with real multiplication
Bert van Geemen, Matthias Schütt
We exhibit large families of K3 surfaces with real multiplication, both abstractly using lattice theory, the Torelli theorem and the surjectivity of the period map, as well as expl…
math.AG2023
Normal forms for quasi-elliptic Enriques surfaces and applications
Toshiyuki Katsura, Matthias Schütt
We work out normal forms for quasi-elliptic Enriques surfaces and give several applications. These include torsors and numerically trivial automorphisms, but our main application i…