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Operator ordering index method for multiple commutators and Suzuki's quantum analysis
Journal of Mathematical Physics
General formulas are presented for the multiple commutator involving a function of an operator A in terms of ͑multiple͒ commutators involving A by using "operator ordering indices." It is pointed out that this analysis essentially reproduces the quantum analysis, proposed by Suzuki very recently, in a more transparent way. Extension to the case of several operators is also made in an elegant form.doi:10.1063/1.531876 fatcat:2ctyypdmrrgtdilspiax47ucbe