2 problems

Let $a,b,c,d$ be the bihomogeneous polynomials considered in the construction of the matrices $M$ and $Q'$, and let $\operatorname{Res}(a,b,c)$ denote their resultant. ZCG determin…

Let $X$ be a finite reduced ACM subscheme of $\mathbb{P}^1 \times \mathbb{P}^1$ with associated partition $\lambda=(\lambda_1,\ldots,\lambda_h)$, and let $I=I(X)$ be its ideal. Par…