The Hessian Discriminant
Abstract
We express the Hessian discriminant of a cubic surface in terms of fundamental invariants. This answers Question 15 from the \emph{27 questions on the cubic surface}. We also explain how to compute the fundamental invariants for smooth cubics of rank 6.
- Publication:
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arXiv e-prints
- Pub Date:
- September 2019
- DOI:
- arXiv:
- arXiv:1909.06681
- Bibcode:
- 2019arXiv190906681D
- Keywords:
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- Mathematics - Algebraic Geometry