IJPAM: Volume 31, No. 3 (2006)
REDUCED PROJECTIVE CURVES WITH
NEGATIVE COTANGENT SHEAF
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
Department of Mathematics
University of Trento
380 50 Povo (Trento) - Via Sommarive, 14, ITALY
e-mail: ballico@science.unitn.it
Abstract.Here we study reduced projective curves (mainly nodal ones) whose cotangent sheaf (modulo its torsion) is negative.
Received: August 15, 2006
AMS Subject Classification: 14F10, 14H99
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: 31
Issue: 3