A strict Positivstellensatz for enveloping algebras
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Let G be a connected and simply connected real Lie group with Lie algebra Open image in new window. Semialgebraic subsets of the unitary dual of G are defined and a strict Positivstellensatz for positive elements of the universal enveloping algebra Open image in new window of Open image in new window is proved.
KeywordsPositivstellensatz enveloping algebras
Mathematics Subject ClassificationPrimary: 11 E25 14 P10 17 B 35 Secondary: 47 L60
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