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Examples of four dimensional cusp singularities. (English) Zbl 1471.14077

Summary: We give some examples of four dimensional cusp singularities which are not of Hilbert modular type. We construct them, using quadratic cones and subgroups of reflection groups.

MSC:

14J17 Singularities of surfaces or higher-dimensional varieties
32S05 Local complex singularities
14B05 Singularities in algebraic geometry
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