Invariant Krein subspaces, regular irreducibility and integral representations

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Mary, Xavier
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Abstract
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We study unitary representations of groups in Krein spaces, irreducibility criteria and integral decompositions. Our main tool is the theory of Krein subspaces and their (reproducing) kernels and a variant of Choquet's theorem.
Comment: 27 pages
Keywords
Mathematics - Functional Analysis, Mathematics - Representation Theory, 46C20, 47A15
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