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

Masayuki Kawakita
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Abstract

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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Masayuki Kawakita. 2000-10-22. Divisorial contractions in dimension three which contract divisors to compound A_1 points. https://arxiv.org/abs/math/0010207

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