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A germ of normal complex analytical surface is called a Hirzebruch-Jung singularity if it is analytically isomorphic to the germ at the 0-dimensional orbit of an affine toric surface. Two such germs are known to be isomorphic if and only if the toric 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 0-dimensional orbit of an affine toric variety determined by a lattice and a simplicial cone of maximal dimension. We deduce a normalization algorithm for quasi-ordinary hypersurface singularities.
@article{Popescu2005, abstract = {A germ of normal complex analytical surface is called a Hirzebruch-Jung singularity if it is analytically isomorphic to the germ at the 0-dimensional orbit of an affine toric surface. Two such germs are known to be isomorphic if and only if the toric 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 0-dimensional orbit of an affine toric variety determined by a lattice and a simplicial cone of maximal dimension. We deduce a normalization algorithm for quasi-ordinary hypersurface singularities.}, author = {Popescu-Pampu, Patrick}, journal = {Revista Matemática Complutense}, keywords = {Funciones algebroides; Singularidades; Hipersuperficies; Hirzebruch-Jung singularities; quasi-ordinary singularities; toric singularities}, language = {eng}, number = {1}, pages = {209-232}, title = {On higher dimensional Hirzebruch-Jung singularities.}, url = {http://eudml.org/doc/38161}, volume = {18}, year = {2005}, }
TY - JOUR AU - Popescu-Pampu, Patrick TI - On higher dimensional Hirzebruch-Jung singularities. JO - Revista Matemática Complutense PY - 2005 VL - 18 IS - 1 SP - 209 EP - 232 AB - A germ of normal complex analytical surface is called a Hirzebruch-Jung singularity if it is analytically isomorphic to the germ at the 0-dimensional orbit of an affine toric surface. Two such germs are known to be isomorphic if and only if the toric 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 0-dimensional orbit of an affine toric variety determined by a lattice and a simplicial cone of maximal dimension. We deduce a normalization algorithm for quasi-ordinary hypersurface singularities. LA - eng KW - Funciones algebroides; Singularidades; Hipersuperficies; Hirzebruch-Jung singularities; quasi-ordinary singularities; toric singularities UR - http://eudml.org/doc/38161 ER -