ScalingStacks

Remark 4.3. One denotes by $\mathcal{W}_{\epsilon}$ the Banach $k$-algebra of $\Gamma(W_{\epsilon},\mathscr{O}_{W_{\epsilon}})$ equipped with supremum norm $\vvvert\mathord{\cdot}\vvvert_{W_{\epsilon}}$ (see Definition 2.70).