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arxiv: 1210.7598 · v2 · pith:6QASPYKZnew · submitted 2012-10-29 · 🧮 math.AG

On the first Gaussian map for Prym-canonical line bundles

classification 🧮 math.AG
keywords firstgaussianlineprym-canonicalbinarybundlebundlescanonical
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We prove by degeneration to Prym-canonical binary curves that the first Gaussian map of the Prym canonical line bundle $\omega_C \otimes A$ is surjective for the general point [C,A] of R_g if g >11, while it is injective if g < 12.

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