IJPAM: Volume 32, No. 4 (2006)

REDUCED PROJECTIVE CURVES
WITH NEGATIVE COTANGENT SHEAF

E. Ballico
Department of Mathematics
University of Trento
380 50 Povo (Trento) - Via Sommarive, 14, ITALY
e-mail: ballico@science.unitn.it E. Ballico


Abstract.Here we study reduced projective curves (mainly nodal ones) whose cotangent sheaf (modulo its torsion) is negative.

Received: Here we study reduced projective curves (mainly nodal ones) whose cotangent sheaf (modulo its torsion) is negative.

AMS Subject Classification:

Key Words and Phrases: tangent sheaf, cotangent sheaf, reducible curve, nodal curve

Source: International Journal of Pure and Applied Mathematics
ISSN: 1311-8080
Year: 2006
Volume: 32
Issue: 4