Indicial/Einstein Notation proofs

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    Notation Proofs
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SUMMARY

The forum discussion centers on the proof of the identity involving the Levi-Civita symbol, specifically εijk εkmn = δim δjn − δin δjm. The user seeks resources to understand this mathematical identity, highlighting that certain cases lead to a result of zero when specific indices are equal. The discussion references the Wikipedia page on the Levi-Civita symbol for further clarification. This identity is crucial in tensor calculus and theoretical physics.

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  • Understanding of tensor calculus
  • Familiarity with the Levi-Civita symbol
  • Knowledge of Kronecker delta notation
  • Basic principles of index notation in mathematics
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Mathematicians, physicists, and students studying advanced topics in tensor calculus and theoretical physics will benefit from this discussion.

Mugged
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Hello, does anyone know where I can find a proof of the following identity?

εijk εkmn = δim δjn − δin δjm
 
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there's not too many cases to consider, when you realize if if k= any of (i,j,m,n) or i=j or m=n, the result is zero
 

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