definition A.421 Witt algebra

open in the book · appendices/A-long-proofs.tex:20690 · p. 2998

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definition A.421: Witt algebraA.421definition 14.72: Central extension14.72theorem A.422: The Virasoro extensionA.422definition A.424: Loop algebra and residueA.424definition A.430: The hypothesesA.430proposition 14.73: The extension datum is a 2-cocycle14.73proposition 14.76: H^2 classifies the central extensions14.76proposition 25.14: The Galilei cocycle is not a coboundary25.14theorem 15.34: The truncation tower is a tower of central extensions15.34definition 14.75: The classifying group14.75proof : app:A-long-proofs@proof-254proof

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depends_on Central extension declared appendices/A-long-proofs.tex:20702
depends_on The Virasoro extension declared appendices/A-long-proofs.tex:20724