Global sections of twisted normal bundles of K3 surfaces and their hyperplane sections
Journal article, Peer reviewed
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Original versionRendiconti Lincei - Matematica e Applicazioni. 2020, 31(1), 57–79 10.4171/rlm/879
Let S⊂Pg be a smooth K3 surface of degree 2g−2, g≥3. We classify all the cases for which h0(NS/Pg(−2))≠0 and the cases for which h0(NS/Pg(−2))<h0(NC/Pg−1(−2)) for C⊂Pg−1 a general canonical curve section of S.