3-fold divisorial extremal neighborhoods over cE7 and cE6 Compound DuVal singularities

Simple item page
dc.creatorTziolas, Nikolaos
dc.date2007-03-28
dc.date2008-01-17
dc.date.accessioned2026-07-07T08:54:55Z
dc.date.available2026-07-07T08:54:55Z
dc.descriptionLet X be the germ of a Gorenstein 3-fold singularity and C a smooth curve through it such that the general hyperplane section S of X containing D is DuVal of type E6 or E7. In this paper we obtain criteria for the existence of a terminal divisorial extremal neighborhood f: Y-->X contracting an irreducible divisor E onto C and classify all such neighborhoods.
dc.descriptionA section has been added classifying all divisorial extremal neighborhoods f:Y-->X such that if E is the f-exceptional divisor and C=f(E), the general hyperplane section S of X containg C is DuVal of type E6. The previous version classified only the E7 case. 20 pages
dc.identifierhttps://arxiv.org/abs/math/0703855
dc.identifierhttp://arxiv.org/abs/math/0703855
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146112
dc.subjectAlgebraic Geometry
dc.subject14E30;14E35
dc.title3-fold divisorial extremal neighborhoods over cE7 and cE6 Compound DuVal singularities
dc.typetext

Files

Collections

arXiv