We determine the equations of the blowup of P n \mathbb {P}^{n} along a d d -fold rational normal scroll S \mathcal {S} , and we prove that the Rees… Click to show full abstract
We determine the equations of the blowup of Pn\mathbb {P}^{n} along a dd-fold rational normal scroll S\mathcal {S}, and we prove that the Rees ring and special fiber ring of S⊆Pn\mathcal {S}\subseteq \mathbb {P}^{n} are Koszul algebras.
