Even sets of four nodes on rational surfaces

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dc.creatorCalabri, Alberto
dc.creatorCiliberto, Ciro
dc.creatorLopes, Margarida Mendes
dc.date2004-07-14
dc.date.accessioned2026-07-07T05:10:18Z
dc.date.available2026-07-07T05:10:18Z
dc.descriptionWe describe smooth rational projective algebraic surfaces X, over an algebraically closed field of characteristic different from 2, having an even set of four disjoint (-2)-curves N_1,...,N_4, i.e. such that N_1+...+N_4 is divisible by 2 in Pic(X).
dc.description9 pages
dc.identifierhttps://arxiv.org/abs/math/0407250
dc.identifierhttp://arxiv.org/abs/math/0407250
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/71890
dc.subjectAlgebraic Geometry
dc.subject14J26
dc.titleEven sets of four nodes on rational surfaces
dc.typetext

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