IJPAM: Volume 54, No. 3 (2009)
IMPOSING NEW NODES TO A LINEAR SYSTEM
E. Ballico
Department of Mathematics
University of Trento
38 123 Povo (Trento) - Via Sommarive, 14, ITALY
e-mail: [email protected]
Department of Mathematics
University of Trento
38 123 Povo (Trento) - Via Sommarive, 14, ITALY
e-mail: [email protected]
Abstract.Let be a disjoint union of smooth projective curves and
ample and spanned. Here we compute the maximal and the minimal dimension of a linear subsystems of
obtained imposing some nodes to
.
Received: June 19, 2009
AMS Subject Classification: 14H20, 14H55, 14H51
Key Words and Phrases: nodal curve, linear series, morphism to
Source: International Journal of Pure and Applied Mathematics
ISSN: 1311-8080
Year: 2009
Volume: 54
Issue: 3