ScalingStacks

Definition 7.23 . [02XM]

Original official author HTML, exact retained edition. Historical TeX conversion verdicts remain unchanged. Cited-edition alignment and mathematical self-containment are not assessed.

Complete original source context · Original author HTML

Definition 7.23.

Let ΣΔ\Sigma_{\Delta} and ΨΔ\Psi_{\Delta} be the fan and the support function on NℝN_{\mathbb{R}} induced by Δ\Delta. Let (XΣΔ,DΨΔ)(X_{\Sigma_{\Delta}},D_{\Psi_{\Delta}}) be the associated polarized toric variety over ℚ\mathbb{Q} and write L=𝒪⁡(DΨΔ)L={\mathcal{O}}(D_{\Psi_{\Delta}}). By Lemma 7.21(1), ϑ\vartheta is a concave function on Δ\Delta. By Theorem 5.73, it corresponds to some approachable toric metric on L⁡(ℂ)L(\mathbb{C}). We denote this metric by ∥⋅∥Δ,ℓ,c\|\cdot\|_{\Delta,\ell,c}. We write L¯{\overline{L}} for the line bundle LL equipped with the metric ∥⋅∥Δ,ℓ,c\|\cdot\|_{\Delta,\ell,c} at the Archimedean place of ℚ\mathbb{Q} and with the canonical metric at the non-Archimedean places. This is an example of an adelic toric metric.

Original mathematics by the credited authors. Source-backed reader collection; mathematical self-containment is not assessed.