Flips from 4-folds with isolated complete intersection singularities whose downstairs have rational bi-elephants

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dc.creatorKachi, Yasuyuki
dc.date1996-06-12
dc.date.accessioned2026-07-07T09:06:50Z
dc.date.available2026-07-07T09:06:50Z
dc.descriptionWe shall investigate a flipping contraction g : X -> Y from a 4-fold X with at most isolated complete intersection singularities. If Y has an anti-bi-canonical divisor (=bi-elephant) with only rational singularities, then g carries an inductive structure chained up by blow-ups (La Torre Pendente), and in particular the flip exists. This naturally contains Miles Reid's `Pagoda' as an anti-canonical divisor (=elephant) and its proper transforms.
dc.descriptionFree picture (photocopy, 1 sheet) is available, write me your name and postal address at kachi@math.utah.edu (by June 28)
dc.identifierhttps://arxiv.org/abs/alg-geom/9606011
dc.identifierhttp://arxiv.org/abs/alg-geom/9606011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/150159
dc.subjectAlgebraic Geometry
dc.titleFlips from 4-folds with isolated complete intersection singularities whose downstairs have rational bi-elephants
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