ScalingStacks

Proof. [02HF]

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Proof.

The first statement is a simple application of Lemma 4.7, since close to each puncture we have

ρk​|∇k(hϵ−1)|≤C​ϵ​ρ−1,\rho^{k}|\nabla^{k}(h_{\epsilon}-1)|\leq C\epsilon\rho^{-1},

where ρ\rho is the distance from the puncture. It follows that away from the punctures gϵghg^{\textup{gh}}_{\epsilon} is Cl​o​ck,αC^{k,\alpha}_{loc}–close to the ℤ2\mathbb{Z}_{2} quotient of g𝕋+ϵ2​θ2g_{\mathbb{T}}+\epsilon^{2}\theta^{2} for any k≥0k\geq 0 and ϵ\epsilon sufficiently small. ∎

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