Generalization of Wigner's unitary-antiunitary theorem for indefinite inner product spaces
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🧮 math.FA
math-phmath.MPmath.OA
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theoremgeneralizationindefiniteinnerproductspacesunitary-antiunitarywigner
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We present a generalization of Wigner's unitary-antiunitary theorem for pairs of ray transformations. As a particular case, we get a new Wigner-type theorem for non-Hermitian indefinite inner product spaces.
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