Birational rigidity is not an open property

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dc.creatorCheltsov, I. A.
dc.creatorGrinenko, M. M.
dc.date2006-12-06
dc.date.accessioned2026-07-07T07:34:42Z
dc.date.available2026-07-07T07:34:42Z
dc.descriptionWe construct an example of the birationally rigid complete intersection of a quadric and a cubic in $\PA^5$ with an ordinary double point, which under a small deformation gives a non-rigid Fano variety. Thus we show that birational rigidity is not open in moduli.
dc.description26 pages
dc.identifierhttps://arxiv.org/abs/math/0612159
dc.identifierhttp://arxiv.org/abs/math/0612159
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/119857
dc.subjectAlgebraic Geometry
dc.subject14E05; 14E07
dc.titleBirational rigidity is not an open property
dc.typetext

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