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A new proof of Wigner’s theorem. (English) Zbl 1161.81381
Summary: We present a new, elementary proof for Wigner’s famous unitary-antiunitary theorem.

81R15 Operator algebra methods applied to problems in quantum theory
46C05 Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product)
46N50 Applications of functional analysis in quantum physics
Full Text: DOI
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