If $$T_{12} = \frac{1}{2} {(T_1 T_2 - T_2 T_1)}$$(adsbygoogle = window.adsbygoogle || []).push({});

That mean antisymmetrization.

How would I expand then $$T_{1234}$$ I find it complicated, it is written on wikipedia for the general case but I can't still deal with these general notations http://en.wikipedia.org/wiki/Antisymmetric_tensor, I mean I can't yet expand it. You would help me if you could expand it or guide me through expanding it using {1,2,3,4} rather than {i,j,k,l} and kronocker delta and those stuff.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Simple question about antisymmetrization

**Physics Forums | Science Articles, Homework Help, Discussion**