Divisorial contractions in dimension three which contract divisors to compound A_1 points

Details Divisorial contractions in dimension three which contract divisors to compound A_1 points Divisorial contractions in dimension three which contract divisors to compound A_1 points

2000-10-22

arxiv.org/abs/math/0010207v1

Mathematics

Algebraic Geometry

23 pages

Scientific paper

We deal with a divisorial contraction in dimension 3 which contracts its
exceptional divisor to a cA_1 point. We prove that any such contraction is
obtained by a suitable weighted blow-up.

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