An optimal gap of minimal log discrepancies of threefold non-canonical singularities

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arxiv 1909.08759 v2 pith:PJ3KVMFM submitted 2019-09-19 math.AG

Jihao Liu , Liudan Xiao This is my paper · ORCID

classification math.AG

keywords minimalnon-canonicaloptimalthreefoldbounddiscrepanciesdiscrepancyfrac

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abstract

We show that the minimal log discrepancy of any $\mathbb Q$-Gorenstein non-canonical threefold is $\leq\frac{12}{13}$, which is an optimal bound.