2005-10-21Buch DOI: 10.18452/2539
1-Semiquasihomogeneous Singularities of Hypersurfaces in Characteristic 2
In arbitrary characteristic different from 2, the singularities with semiquasihomogeneous equations characterized by the condition to have Saito-invariant 1 are the "classical" quasihomogeneous ones, known over the field of complex numbers as simple elliptic singularities (introduced by K. Saito). Here we find them in characteristic 2 as well: In odd dimensions and for weights E_6~ and E_7~ non-quasihomogeneous equations appear.
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