On covering and quasi-unsplit families of rational curves

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dc.creatorBonavero, L.
dc.creatorCasagrande, C.
dc.creatorDruel, S.
dc.date2005-04-04
dc.date.accessioned2026-07-07T05:18:46Z
dc.date.available2026-07-07T05:18:46Z
dc.descriptionWe study extremality properties of covering families of rational curves on projective varieties. Among others, we show that on a normal and Q-factorial projective variety of dimension at most 4, every covering and quasi-unsplit family of rational curves generates a geometric extremal ray of the Mori cone.
dc.description13 pages
dc.identifierhttps://arxiv.org/abs/math/0504056
dc.identifierhttp://arxiv.org/abs/math/0504056
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/74782
dc.subjectAlgebraic Geometry
dc.subject14E30,14J99,14M99
dc.titleOn covering and quasi-unsplit families of rational curves
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