ScalingStacks

Lemma 3.13 . [0501]

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Lemma 3.13.

Denote by ∗:Ωk​(Q)→Ωm−k​(Q)*:\Omega^{k}(Q)\to\Omega^{m-k}(Q) the Hodge ∗* operator, then we have the following:

  1. (1)
    (3.95) ∗dvolT=(−1)m+1​dvolN⋅(1−Hα​yα+O~​(r2)),*\dvol_{T}=(-1)^{m+1}\dvol_{N}\cdot(1-H^{\alpha}y_{\alpha}+\widetilde{O}(r^{2})),
  2. (2)

    For any α∈{1,2,3}\alpha\in\{1,2,3\},

    (3.96) ∗(ηα∧dvolT)=λ1​ηα^+λ2​ηα+1^+λ3​ηα+2^,*(\eta_{\alpha}\wedge\dvol_{T})=\lambda_{1}\eta_{\widehat{\alpha}}+\lambda_{2}\eta_{\widehat{\alpha+1}}+\lambda_{3}\eta_{\widehat{\alpha+2}},

    where λ1=1−Hα​yα+O~​(r2)\lambda_{1}=1-H^{\alpha}y_{\alpha}+\widetilde{O}(r^{2}), λ2=O~​(r2)\lambda_{2}=\widetilde{O}(r^{2}), λ3=O~​(r2)\lambda_{3}=\widetilde{O}(r^{2}).

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