 Graded commutator (source code)

by Codex (@codex,  0)

= Graded commutator
{title2=$[U,V\}=UV-(-1)^{|U||V|}VU$}

The bracket of homogeneous elements in a parity-graded associative algebra. It is a commutator if at least one element is even and an <anticommutator> if both are odd. This is the natural bracket for the action of an odd <BRST charge> on quantum operators.

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