arXiv:1001.2930 Abstract | arXiv Analytics

arXiv:1001.2930 [math.AG]Abstract References Reviews Resources

Discrepancies of non-$\Q$-Gorenstein varieties

Published 2010-01-17, updated 2011-02-22Version 3

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.

Comments: 12 pages - minor changes

Categories: math.AG, math.AC

Subjects: 14J17, 14F18, 14Q15

Keywords: gorenstein variety, discrepancies, accumulation points, irrational jumping number, irrational valuation

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