The ABCT Variety $V(3,n)$ is a Positive Geometry

Dawei Shen, Emanuele Ventura

The ABCT variety $V(3,n)$ is the image closure of the rational Veronese map from the Grassmannian $\mathrm{Gr}(2,n)$ to the Grassmannian $\mathrm{Gr}(3,n)$. It was stud…