ScalingStacks

Lemma 4.2 . [051I]

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Lemma 4.2.

The cohomology class 12​π​[Υ]∈H2​(Q∖P,ℝ)\frac{1}{2\pi}[\Upsilon]\in H^{2}(Q\setminus P;\mathbb{R}) is integral.

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