ScalingStacks

Proof. [053R]

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Proof.

Applying Lemma 5.3 and the chain rule,

(5.42) 𝒲(𝒢k(z),𝒟k(z))=−z⋅n(λkn)12⋅zn2−1⋅12​(λkn)12​zn2=−n2.\mathcal{W}(\mathcal{G}_{k}(z),\mathcal{D}_{k}(z))=-z\cdot n(\frac{\lambda_{k}}{n})^{\frac{1}{2}}\cdot z^{\frac{n}{2}-1}\cdot\frac{1}{2(\frac{\lambda_{k}}{n})^{\frac{1}{2}}z^{\frac{n}{2}}}=-\frac{n}{2}.

∎

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