RT Journal Article T1 Inflectional loci of scrolls A1 Lanteri, Antonio A1 Mallavibarrena Martínez de Castro, Raquel A1 Piene, Ragni AB Let X⊂PN be a scroll over a smooth curve C and let L=OPN(1)|X denote the hyperplane bundle. The special geometry of X implies that certain sheaves related to the principal part bundles of L are locally free. The inflectional loci of X can be expressed in terms of these sheaves, leading to explicit formulas for the cohomology classes of the loci. The formulas imply that the only uninflected scrolls are the balanced rational normal scrolls. PB Springer SN 0025-5874 YR 2008 FD 2008-03 LK https://hdl.handle.net/20.500.14352/50536 UL https://hdl.handle.net/20.500.14352/50536 LA eng DS Docta Complutense RD 28 dic 2025