K3 carpets on minimal rational surfaces and their smoothings
K3 carpets on minimal rational surfaces and their smoothings
In this paper, we study K3 double structures on minimal rational surfaces [Formula: see text]. The results show there are infinitely many non-split abstract K3 double structures on [Formula: see text] parametrized by [Formula: see text], countably many of which are projective. For [Formula: see text] there exists a unique …