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A practical algorithm to compute the geometric Picard lattice of K3 surfaces of degree $2$

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 نشر من قبل Dino Festi
 تاريخ النشر 2018
  مجال البحث
والبحث باللغة English
 تأليف Dino Festi




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Let $k$ be either a number a field or a function field over $mathbb{Q}$ with finitely many variables. We present a practical algorithm to compute the geometric Picard lattice of a K3 surface over $k$ of degree $2$, i.e., a double cover of the projective plane over $k$ ramified above a smooth sextic curve. The algorithm might not terminate, but if it terminates then it returns a proven correct answer.

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