Automorphs of indefinite binary quadratic forms and K3-surfaces with Picard number 2

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dc.creatorGalluzzi, Federica
dc.creatorLombardo, Giuseppe
dc.creatorPeters, Chris
dc.date2008-04-04
dc.date.accessioned2026-07-07T09:30:29Z
dc.date.available2026-07-07T09:30:29Z
dc.descriptionEvery indefinite binary form occurs as the Picard lattice of some K3-surface. The group of its isometries, or automorphs, coincides with the automorphism group of the K3-surface, but only up to finite groups. The classical theory of automorphs for binary forms can then be applied to study these automorphism groups. The result is a precise description of all possible automorphism groups of ``general'' K3's with Picard number two.
dc.identifierhttps://arxiv.org/abs/0804.0725
dc.identifierhttp://arxiv.org/abs/0804.0725
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158137
dc.subjectAlgebraic Geometry
dc.subject14J28,14J50
dc.titleAutomorphs of indefinite binary quadratic forms and K3-surfaces with Picard number 2
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