Commuting operators

Two linear operators

A

and

B

commute when

A B = B A

. Their matrix exponentials then satisfy

e^{A + B} = e^{A} e^{B} = e^{B} e^{A}

.

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Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 324 / 3 / b / Solution
Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 324 / 3 / c / Solution

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