On higher dimensional Hirzebruch-Jung singularities

• Autores: Patrick Popescu-Pampu
• Localización: Revista matemática complutense, ISSN-e 1988-2807, ISSN 1139-1138, Vol. 18, Nº 1, 2005, págs. 209-232
• Idioma: inglés
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• Resumen

  • A germ of normal complex analytical surface is called a Hirzebruch-Jung singularity if it is analytically isomorphic to the germ at the O-dimensional orbit of an affine toric surface. Two such germs are known to be isomorphic if and only if the tone surfaces corresponding to them are equivariantly isomorphic. We extend this result to higher-dimensional Hirzebruch-Jung singularities, which we define to be the germs analytically isomorphic to the germ at the O-dimensional orbit of en affine toric variety determined by a lattice and a simplicial cone of maximal dimension. We deduce a normalization algorithm for quasi-ordinary hypersurface singularities.