9.2 4-Dimensionaler -Tensor

$\displaystyle \varepsilon^{\alpha \beta \gamma \delta}_{}$ $\displaystyle \varepsilon_{\alpha \beta \gamma \delta}^{}$	=	24	(9.13)
$\displaystyle \varepsilon^{\alpha \beta \mu \nu}_{}$ $\displaystyle \varepsilon_{\alpha \beta \mu \nu}^{}$	=	-6 $\displaystyle \delta^{\mu \cdot}_{\cdot \nu }$	(9.14)
$\displaystyle \varepsilon^{\alpha \beta \mu \nu}_{}$ $\displaystyle \varepsilon_{\alpha \beta \rho \sigma}^{}$	=	-2 $\displaystyle \left(\vphantom{ \delta^{\mu\cdot}_{\cdot \nu} \delta^{\nu\cdot}_... ...\sigma} - \delta^{\mu\cdot}_{\cdot \nu} \delta^{\mu\cdot}_{\cdot \rho} }\right.$ $\displaystyle \delta^{\mu \cdot}_{\cdot \nu }$ $\displaystyle \delta^{\nu\cdot}_{\cdot \sigma}$ - $\displaystyle \delta^{\mu \cdot}_{\cdot \nu }$ $\displaystyle \delta^{\mu\cdot}_{\cdot \rho}$ $\displaystyle \left.\vphantom{ \delta^{\mu\cdot}_{\cdot \nu} \delta^{\nu\cdot}_... ...\sigma} - \delta^{\mu\cdot}_{\cdot \nu} \delta^{\mu\cdot}_{\cdot \rho} }\right)$	(9.15)