ScalingStacks

Theorem 3.5 . [02E1]

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Theorem 3.5.

Let XX be projective algebraic complex manifold, ω0\omega_{0} a smooth semi Kähler form that is Kähler outside a complex subvariety S⊂XS\subset X, and fix Ω\Omega be a Kähler form on XX. Assume that ωon=D​Ωn\omega_{o}^{n}=D\Omega^{n}, where D−εD^{-\varepsilon} is in L1​(Ωn)L^{1}(\Omega^{n}), and that [ω0],[Ω]∈N​Sℝ​(X)[\omega_{0}],[\Omega]\in NS_{\mathbb{R}}(X).

Let s1,…,sps_{1},...,s_{p} (resp. t1,…,tqt_{1},...,t_{q}) be holomorphic sections of some line bundle LL (resp L′L^{\prime}) on XX. Fix k∈ℝ≥0k\in\mathbb{R}_{\geq 0}, l∈ℝ≥0l\in\mathbb{R}_{\geq 0} and F∈𝒞∞​(X,ℝ)F\in{\mathcal{C}}^{\infty}(X,\mathbb{R}). Assume that

∫X1|t1|2​l+…+|tq|2​l​Ωn<∞​ and ​∫X|s1|2​k+…+|sp|2​k|t1|2​l+…+|tq|2​l​eF​Ωn=∫XΩn.\int_{X}\frac{1}{|t_{1}|^{2l}+\ldots+|t_{q}|^{2l}}\Omega^{n}<\infty\text{ and }\int_{X}\frac{|s_{1}|^{2k}+\ldots+|s_{p}|^{2k}}{|t_{1}|^{2l}+\ldots+|t_{q}|^{2l}}e^{F}\Omega^{n}=\int_{X}\Omega^{n}.

Then the unique continuous function φ∈P​S​H​(X,ω0)\varphi\in PSH(X,\omega_{0}) such that

(ω0+d​dc​φ)n=|s1|2​k+…+|sp|2​k|t1|2​l+…+|tq|2​l​eF​Ωn​ and ​supXφ=−1(\omega_{0}+dd^{c}\varphi)^{n}=\frac{|s_{1}|^{2k}+\ldots+|s_{p}|^{2k}}{|t_{1}|^{2l}+\ldots+|t_{q}|^{2l}}e^{F}\Omega^{n}\,\text{ and }\sup_{X}\varphi=-1

is smooth outside B=S∪∩i{si=0}∪∩i{ti=0}B=S\cup\cap_{i}\{s_{i}=0\}\cup\cap_{i}\{t_{i}=0\}.

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