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arXiv · 1208.3271

On the Log Discrepancies in Toric Mori Contractions

Valery Alexeev·Alexander Borisov
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Abstract

It was conjectured by McKernan and Shokurov that for all Mori contractions from X to Y of given dimensions, for any positive epsilon there is a positive delta, such that if X is epsilon-log terminal, then Y is delta-log terminal. We prove this conjecture in the toric case and discuss the dependence of delta on epsilon, which seems mysterious.

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Valery Alexeev, Alexander Borisov. 2012-08-16. On the Log Discrepancies in Toric Mori Contractions. https://arxiv.org/abs/1208.3271

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