2 problems

Let $X$ be a curve, let $G$ be a constant group scheme over $X$, and let $\ell$ be an integer prime to the characteristic. Set $A=\mu_\ell$, so that…

Let $X$ be a curve and $G$ a constant group scheme over $X$. Let $(K_2)_{\operatorname{Zar}}$ be the Zariski sheafification of the prestack assigning $K_2(A)$ to an affine scheme…