A connectedness theorem over the spectrum of a formal power series ring
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classification
math.AG
keywords
connectednessformalpowerringseriesspectrumapplycentre
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We study the connectedness of the non-subklt locus over the spectrum of a formal power series ring. In dimension 3, we prove the existence and normality of the smallest lc centre, and apply it to the ACC for minimal log discrepancies greater than 1 on non-singular 3-folds.
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