Let C ⊂ Pn+1 be a rational normal curve and let X ⊂ Pn be one of its tangential projection. We describe the X-rank of a point P ∈ Pn in terms of the schemes evincing the C-rank or the border C-rank of the preimage of P .
Minimal decomposition of binary forms with respect to tangential projections / Ballico, Edoardo; Bernardi, Alessandra. - In: JOURNAL OF ALGEBRA AND ITS APPLICATIONS. - ISSN 0219-4988. - STAMPA. - 12:6(2013), pp. 1350010.1-1350010.8. [10.1142/S0219498813500102]
Minimal decomposition of binary forms with respect to tangential projections
Ballico, Edoardo;Bernardi, Alessandra
2013-01-01
Abstract
Let C ⊂ Pn+1 be a rational normal curve and let X ⊂ Pn be one of its tangential projection. We describe the X-rank of a point P ∈ Pn in terms of the schemes evincing the C-rank or the border C-rank of the preimage of P .File in questo prodotto:
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