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arXiv · 1905.01091

Maximality of quartic symmetroids with a double quadric of codimension 1

Martin Helsø
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Abstract

We prove that the dimension of a quartic symmetroid singular along a quadric of codimension 1 is at most 4, if it is not a cone. In the maximal case, the quadric is reducible and consists of rank-3-points. If the quadric is irreducible, it consists of rank-2-points and the symmetroid is at most 3-dimensional.

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Martin Helsø. 2019-05-03. Maximality of quartic symmetroids with a double quadric of codimension 1. https://arxiv.org/abs/1905.01091

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