Rendiconti dell’Istituto di Matematica dell’Università di Trieste: an International Journal of Mathematics
Abstract
In the space of sextic forms in 4 variables with a decompo-sition of length 18 we determine and describe a closed subvariety which contains all non-identifiable sextics. The description of the subvari-ety is geometric, but one can derive from that an algorithm which can guarantee that a given form is identifiable.
