Discrepancies of non-$\Q$-Gorenstein varieties

Details Discrepancies of non-$\Q$-Gorenstein varieties Discrepancies of non-$\Q$-Gorenstein varieties

2010-01-17

arxiv.org/abs/1001.2930v3

Mathematics

Algebraic Geometry

12 pages - minor changes

Scientific paper

We give an example of a non $\Q$-Gorenstein variety which is canonical but
not klt, and whose canonical divisor has an irrational valuation. We also give
an example of an irrational jumping number and we prove that there are no
accumulation points for the jumping numbers of normal non-$\Q$-Gorenstein
varieties with isolated singularities.

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