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Proposition 10.30.106436A9863EBA

Proposition 10.30.10.6436A9863EBA If $v_+(\omega )=+\infty $, there is $U\in \mathrm{PSH}(Y,\omega )$ such that

\[ \mathbb D_\omega (U)=\mathbb D_\omega (0),\qquad \int _ Y\mathrm{MA}^{\mathrm{ext}}_\omega (U)=+\infty , \qquad \int _ Y\omega ^ n<+\infty . \]

The common family has the nef Cartier realization $(Y,\{ \omega \} )$.

Proof. Take $U$ from theorem 13.14.18. All its multiplier ideals at positive weights are trivial, so every divisorial order in $D_{m,Z}$ vanishes on every model. The self-trace identity gives $N_ Z(U)=0$, which is also the divisorial part of the zero potential. Both families therefore consist of the pullbacks of the class of $\omega $. Since $\omega $ is smooth and positive, its affine class is nef and realizes the family on $Y$ itself. The extended mass of $U$ is infinite by construction, whereas the smooth measure $\omega ^ n$ has finite mass because $Y$ is compact. $\square$

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