Universal abelian covers of superisolated singularities

Journal article, 2009

We give explicit examples of Gorenstein surface singularities with integral homology sphere link, which are not complete intersections. Their existence was shown by Luengo-Velasco, Melle-Hernández and Némethi, thereby providing counterexamples to the universal abelian covering conjecture of Neumann and Wahl (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)