Non-normal purely log terminal centres in characteristic p geq 3
classification
🧮 math.AG
keywords
purelyterminalbuildingcentrecentrescharacteristicdimensionevery
read the original abstract
In this note we show, building on a recent work of Totaro, that for every prime number $p \geq 3$ there exists a purely log terminal pair $(Z,S)$ of dimension $2p+2$ whose plt centre $S$ is not normal.
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