ScalingStacks

0MY8

Proposition 3.12. There is a natural isomorphism E≅SW⋉ℚ⁡[π0​(G)].E\cong S^{W}\ltimes\mathbb{Q}[\pi_{0}(G)].

0MY9

Proof. If GG is connected this is (3.7). Otherwise the statements follow from a transfer argument for finite group torsors, see [SVW18, Section A.2.2]. ∎

Original mathematics by the credited authors. Source collection and HTML conversion remain in progress.

Jens Niklas Eberhardt, Catharina Stroppel

Original source: arXiv:2109.00305v2