Quasihomogeneity of curves and the jacobian endomorphism ring.

Michel Granger (1) , Mathias Schulze (2)

1 LAREMA - Laboratoire Angevin de Recherche en Mathématiques
2 University of Kaiserslautern [Kaiserslautern]

We give a quasihomogeneity criterion for Gorenstein curves. For complete intersections, it is related to the fi rst step of Vasconcelos' normalization algorithm. In the process, we give a simpli ed proof of the Kunz-Ruppert criterion.

Mots clés: Gorenstein curves; Jacobian andomorphism ring; normalization algorithm.; normalization algorithm

Domaines: Géométrie algébrique [math.AG]

Michel Granger, Mathias Schulze. Quasihomogeneity of curves and the jacobian endomorphism ring.. 2012. ⟨hal-00757049⟩