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On binomial equations defining rational normal scrolls

Margherita Barile
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Abstract

We show that a rational normal scroll can in general be set-theoretically defined by a proper subset of the 2-minors of the associated two-row matrix. This allows us to find a class of rational normal scrolls that are almost set-theoretic complete intersections.

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Margherita Barile. 2007-01-12. On binomial equations defining rational normal scrolls. https://arxiv.org/abs/math/0602609

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