theorem A.414 $H^{2}$ of the Galilei algebra

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theorem A.414: H^2 of the Galilei algebraA.414definition A.413: The Galilei algebra of three space dimensionsA.413definition 14.75: The classifying group14.75proposition 14.76: H^2 classifies the central extensions14.76proof : app:A-long-proofs@proof-253proofequation A.165: eq:app-kin-KP-KHA.165equation A.161: eq:app-kin-isotropyA.161theorem 14.90: Bacry–Lévy-Leblond14.90proposition A.419: The coboundariesA.419proposition A.418: The cocyclesA.418definition 14.74: Coboundary and triviality14.74proposition 14.73: The extension datum is a 2-cocycle14.73definition A.397: Cochains and the differentialA.397example 14.80: The Galilei algebra14.80proposition 14.77: Semisimple algebras admit no nontrivial extension14.77theorem A.422: The Virasoro extensionA.422definition 14.72: Central extension14.72corollary A.411: Semisimple algebras admit no nontrivial extensionA.411proposition A.408: The two groups vanish for the trivial moduleA.408proof : ch:12-lie-groups-fibre-bundles@proof-36proof

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typedirectionnode provenancewhere
depends_on The Galilei algebra of three space dimensions declared appendices/A-long-proofs.tex:20243
depends_on The classifying group declared appendices/A-long-proofs.tex:20243
depends_on $H^{2}$ classifies the central extensions declared appendices/A-long-proofs.tex:20243
proves app:A-long-proofs@proof-253 declared appendices/A-long-proofs.tex:20589