't Hooft symbol (Q4540600)

algebraic symbol which expresses the generators of the SU(2) Lie algebra in terms of the generators of the Lorentz algebra

Language	Label	Description	Also known as
English	't Hooft symbol	algebraic symbol which expresses the generators of the SU(2) Lie algebra in terms of the generators of the Lorentz algebra

Statements

\eta _{\mu \nu }^{a}={\begin{cases}\epsilon ^{a\mu \nu }&\mu ,\nu =1,2,3\\-\delta ^{a\nu }&\mu =4\\\delta ^{a\mu }&\nu =4\\0&\mu =\nu =4\end{cases}}

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