User talk:NDupont1

Mistake in identity
Dear NDupont1. I am not able to prove the identity you added. In fact, your identity seem to give the wrong result when I compare with the case M=2 N=2. If on the other hand I change the order of the first two factors (A^n B^m -> B^m A^n) or the last two factors (A^{N-n-1} B^{M-m-1} -> B^{M-m-1}A^{N-n-1}) I seem to be able to prove it. Could there be a mistake here? 147.251.27.140 (talk) 08:51, 15 July 2024 (UTC)


 * You are totally correct: the order of operators in one of the two sides of the commutator must be flipped. I am amending the article. Thank you, and sorry for the inconvenience! NDupont1 (talk) 10:45, 15 July 2024 (UTC)