Algebraic conditions for a function on a
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Stanley P. Gudder
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Article
📅
1979
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Springer
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English
⚖ 273 KB
We characterize functions on an Abelian group which satisfy certain algebraic conditions. We then apply this result to obtain generalizations of the Jordan--von Neumann theorem on quadratic forms. These last results are then used to prove a theorem on observable systems in axiomatic quantum mechanic