Pome

Example 18.6.80F685C3DE85F

Example 18.6.8.0F685C3DE85F Let $\theta $ be semipositive and big, and let $a\in \mathrm{PSH}(X,\theta )$ have analytic singularities with $a\leq 0$. Use the normalization scalars $B_\varphi $ and the sets $\mathcal A_\varphi (G)$ of supporting probabilities from section 11.33, section 11.34, defined with the fixed volume form $\mathrm{d}V$. Set

\[ \varphi _ t=P_\theta [ta],\qquad t\in \mathbb Q\cap (0,1). \]

By proposition 18.4.8, $\varphi _ t\sim ta$; since the ordinary envelope depends only on the ordinary type, $P_\theta [\varphi _ t]=\varphi _ t$. Moreover $ta\in \mathrm{PSH}(X,t\theta )$ and $ta\leq \varphi _ t$, so the envelope $P_{t\theta }(\varphi _ t)$ in the smaller background is not identically $-\infty $. By proposition 11.39.1,

\[ \sup _{G\in C(X)}|B_{\varphi _ t}(G)-B_0(G)| \leq -n\log (1-t)\longrightarrow 0 \qquad (t\downarrow 0). \]

When $\theta $ is Hermitian and $G$ is fixed and smooth, every choice in $\mathcal A_{\varphi _ t}(G)$ converges weakly in $L^1$ to the smooth Gauduchon adjoint probability, by corollary 11.39.6, theorem 11.34.9.

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