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math.AG2016★ 4 cited
Contraction algebra and singularity of three-dimensional flopping contraction
Zheng Hua
In [5], Donovan and Wemyss introduced the contraction algebra of flopping curves in 3-folds. They conjectured that the contraction algebra determines the formal neighborhood of the…
math.AG2016★ 1 cited
Contraction algebra and invariants of singularities
Zheng Hua, Yukinobu Toda
In [7], Donovan and Wemyss introduced the contraction algebra of flop- ping curves in 3-folds. When the flopping curve is smooth and irreducible, we prove that the contraction alge…