Bernstein-Gelfand-Gelfand meets geometric complexity theory: resolving the 2 x 2 permanents of a 2 x n matrix

Fulvio Gesmundo, Hang, Huang +2

We describe the minimal free resolution of the ideal of $2\times 2$ subpermanents of a $2\times n$ generic matrix $M$. In contrast to the case of $2\times 2$ determinants, the $…