ScalingStacks

Corollary 7.3 . [01BT]

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Corollary 7.3.

Assume that ω\omega has the orthogonality property. Let φ∈ℰ1​(X,ω)\varphi\in\mathcal{E}^{1}(X,\omega) and f∈C0​(X)f\in C^{0}(X). Then Pω​(φ+t​f)∈ℰ1​(X,ω)P_{\omega}(\varphi+tf)\in\mathcal{E}^{1}(X,\omega) for all t∈𝐑t\in\mathbf{R} and

dd​t|t=0​Eω∘Pω​(φ+t​f)=∫f​MA⁡(φ).\frac{d}{dt}\bigg|_{t=0}E_{\omega}\circ P_{\omega}(\varphi+tf)=\int f\,\MA(\varphi).

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