Example 22.1.13.796F447D96B6 Fix $\varphi \in \mathrm{PSH}(X,\theta )$. We can define an associated non-Archimedean metric
\[ \Gamma ^{\varphi }\in \mathrm{PSH}^{\mathrm{NA}}(X,\theta ) \]
as follows:
FB0E6FB2D0F7$\Gamma ^{\varphi }_{\max }=0$;
7A4B948C1C94for any $\omega \in \textup{Käh}(X)$ and any $\tau <0$, we set
\[ \Gamma ^{\varphi ,\theta +\omega }_{\tau }=P_{\theta +\omega }[\varphi ]_{\mathcal{I}}. \]
Such non-Archimedean metrics are called homogeneous non-Archimedean metrics.
Observe that
\[ \operatorname{vol}\Gamma ^{\varphi }=\operatorname{vol}\theta _{\varphi }. \]
See proposition 18.1.27 and the footnote there.
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