Wigner's theorem revisited (Q2915431)
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scientific article; zbMATH DE number 6083263
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Wigner's theorem revisited |
scientific article; zbMATH DE number 6083263 |
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Wigner's theorem revisited (English)
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17 September 2012
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isometry
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Wigner's unitary-antiunitary theorem
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functional equation involving norm
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inner product
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Some functional equations involving norms induced by an inner product are considered. The results obtained state that the solutions of those equations are so-called phase equivalent to a real linear isometry.NEWLINENEWLINE The relations with Wigner's theorem (and also the title of the paper) are not too strong. Also, the equations considered look a little artificial.
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