ACC for minimal lengths of extremal rays for surfaces
classification
🧮 math.AG
keywords
extremallengthsrayssurfacesascendingcanonicalcasechain
read the original abstract
We prove that the lengths of extremal rays of log canonical Fano surfaces with Picard number one satisfy the ascending chain condition. This confirms the 2-dimensional case of a conjecture stated by Fujino and Ishitsuka
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