On Extremal Contractions from Threefolds to Surfaces: the Case of One non-Gorenstein Point

zbMath0911.14002arXivalg-geom/9605002MaRDI QIDQ4355870

Yuri G. Prokhorov

Publication date: 4 May 1999

Full work available at URL: https://arxiv.org/abs/alg-geom/9605002

zbMATH Keywords

minimal model programextremal contractionsterminal singularitiesthreefoldsMori conic bundlenon-Gorenstein singular point

Mathematics Subject Classification ID

Singularities in algebraic geometry (14B05) (3)-folds (14J30) Global theory of complex singularities; cohomological properties (32S20) Minimal model program (Mori theory, extremal rays) (14E30)

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