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On cubics and quartics through a canonical curve

Christian Pauly
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Abstract

We construct families of quartic and cubic hypersurfaces through a canonical curve, which are parametrized by an open subset in a Grassmannian and a Flag variety respectively. Using G. Kempf's cohomological obstruction theory, we show that these families cut out the canonical curve and that the quartics are birational (via a blowing-up of a linear subspace) to quadric bundles over the projective plane, whose Steinerian curve equals the canonical curve.

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Christian Pauly. 2003-04-26. On cubics and quartics through a canonical curve. https://arxiv.org/abs/math/0304422

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