On exceptional quotient singularities

Ivan Cheltsov; Constantin Shramov

doi:10.2140/gt.2011.15.1843

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Home > Journals > Geom. Topol. > Volume 15 > Issue 4 > Article

2011 On exceptional quotient singularities

Ivan Cheltsov, Constantin Shramov

Geom. Topol. 15(4): 1843-1882 (2011). DOI: 10.2140/gt.2011.15.1843

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Abstract

We study exceptional quotient singularities. In particular, we prove an exceptionality criterion in terms of the $α$ –invariant of Tian, and utilize it to classify four-dimensional and five-dimensional exceptional quotient singularities.

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Ivan Cheltsov. Constantin Shramov. "On exceptional quotient singularities." Geom. Topol. 15 (4) 1843 - 1882, 2011. https://doi.org/10.2140/gt.2011.15.1843