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arxiv: 1304.5949 · v1 · pith:YUOB5JTZnew · submitted 2013-04-22 · 🧮 math.AG

Birational maps of 3-folds

classification 🧮 math.AG
keywords contractionsdivisorialfoldsmoothbirationalblow-downscurvediscrepancies
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We show that 3-fold terminal flips and divisorial contractions may be factored into a sequence of flops, blow-downs to a smooth curve in a smooth 3-fold or divisorial contractions to points with minimal discrepancies.

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