On the Log Discrepancies in Toric Mori Contractions
Algebraic Geometry
2013-02-08 v2
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.
Keywords
Cite
@article{arxiv.1208.3271,
title = {On the Log Discrepancies in Toric Mori Contractions},
author = {Valery Alexeev and Alexander Borisov},
journal= {arXiv preprint arXiv:1208.3271},
year = {2013}
}
Comments
8 pages, no figures. 2nd version: some typos corrected