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Lanteri, Antonio ; Mallavibarrena Martínez de Castro, Raquel ; Piene, Ragni | Academic Press | 2015-11-01Quadric flbrations over smooth curves are investigated with respect to their osculatory behavior. In particular, bounds for the dimensions of the osculating spaces are determined, and explicit formulas for the classes of the inflectional loci ar[...]texto impreso
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 exp[...]texto impreso
Lanteri, Antonio ; Mallavibarrena Martínez de Castro, Raquel ; Piene, Ragni | Indiana University | 2012Let X subset of P-N be a scroll over an m-dimensional variety Y. We find the locally free sheaves on X governing the osculating behavior of X, and, under certain dimension assumptions, we compute the cohomology class and the degree of the inflec[...]
