ScalingStacks

Proposition 3.20 . [050F]

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Proposition 3.20.

There is some 33-form Λ3(4)\Lambda_{3}^{(4)} (given in Notation 3.9) such that if we choose

𝔅0\displaystyle\mathfrak{B}_{0} ≡Hα​yα4​r​d​y1∧d​y2∧d​y3\displaystyle\equiv\frac{H^{\alpha}y_{\alpha}}{4r}dy_{1}\wedge dy_{2}\wedge dy_{3}
(3.189) +(Ωi​j​α​β​(116​yα​β^​d​r−316​r​d​yα​β^)−116​Ai​j​α​β​(yα​β^​d​r+r​d​yα​β^))∧d​xi∧d​xj+r−3​Λ3(4),\displaystyle+\Big(\Omega_{ij\alpha\beta}(\frac{1}{16}y_{\widehat{\alpha\beta}}dr-\frac{3}{16}rdy_{\widehat{\alpha\beta}})-\frac{1}{16}A_{ij\alpha\beta}(y_{\widehat{\alpha\beta}}dr+rdy_{\widehat{\alpha\beta}})\Big)\wedge dx_{i}\wedge dx_{j}+r^{-3}\Lambda_{3}^{(4)},

then the corrected 33-form of ϕ1\phi_{1},

(3.190) ϕ2≡\displaystyle\phi_{2}\equiv ϕ1+𝔅0\displaystyle\phi_{1}+\mathfrak{B}_{0}

satisfies

(3.191) Δ​ϕ2=O′​(1)​on​𝒰∖P,\Delta\phi_{2}=O^{\prime}(1)\ \text{on}\ \mathcal{U}\setminus P,

and has the expansion

ϕ2=\displaystyle\phi_{2}= 12​r​(1−Hα​yα2)​d​y1∧d​y2∧d​y3+12​r​yβ​Ai​α​β​d​xi∧d​yα^−14​Ai​j​α​β​r⋅d​yα​β^∧d​xi∧d​xj\displaystyle\frac{1}{2r}(1-\frac{H^{\alpha}y_{\alpha}}{2})dy_{1}\wedge dy_{2}\wedge dy_{3}+\frac{1}{2r}y_{\beta}A_{i\alpha\beta}dx_{i}\wedge dy_{\widehat{\alpha}}-\frac{1}{4}A_{ij\alpha\beta}r\cdot dy_{\widehat{\alpha\beta}}\wedge dx_{i}\wedge dx_{j}
(3.192) +316​(Ai​α,α+1​Aj​α,α+2−Ai​α,α+2​Aj​α,α+1)​d​(r​yα)∧d​xi∧d​xj+r−3​Π3(4)+O′​(r2).\displaystyle+\frac{3}{16}(A_{i\alpha,\alpha+1}A_{j\alpha,\alpha+2}-A_{i\alpha,\alpha+2}A_{j\alpha,\alpha+1})d(ry_{\alpha})\wedge dx_{i}\wedge dx_{j}+r^{-3}\Pi_{3}^{(4)}+O^{\prime}(r^{2}).

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