A theorem which specifies the structure of the generic unitary representation of the Weyl relations and thus establishes the equivalence of Heisenberg's matrix mechanics and Schrödinger's wave mechanics formulations of quantum mechanics in Euclidean space.
Stone-von Neumann Theorem
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References
Neumann, J. von. "Die Eindeutigkeit der Schrödingerschen Operationen." Math. Ann. 104, 570-578, 1931.Referenced on Wolfram|Alpha
Stone-von Neumann TheoremCite this as:
Weisstein, Eric W. "Stone-von Neumann Theorem." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Stone-vonNeumannTheorem.html