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arXiv · 2208.08194

On the study of decompositions of forms in four variables

Luca Chiantini
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Abstract

In the space of sextic forms in 4 variables with a decomposition of length 18 we determine and describe a closed subvariety which contains all non-identifiable sextics. The description of the subvariety is geometric, but one can derive from that an algorithm which can guarantee that a given form is identifiable.

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Luca Chiantini. 2022-08-17. On the study of decompositions of forms in four variables. https://arxiv.org/abs/2208.08194

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