- #1
kudoushinichi88
- 129
- 2
Homework Statement
If [itex]A_{ij}[/itex] is a skew-symmetric tensor, and [itex]B_{ij}[/itex] is a second-order tensor, evaluate the expression
[tex](B_{ij} B_{kl} + B_{il}B_{kj})A_{ik}[/tex]
and express the final answer in its simplest form.
Homework Equations
For a skew-symmetric tensor, [itex]A_{ik}=-A_{ki}[/itex]
The Attempt at a Solution
I'm stuck and unsure what's the first step. I notice that the expression in the bracket looks similar to what happens when two Levi-Civita symbols come together to form an expression of two pairs of the Kronecker delta. Other than that I'm quite lost. Can I get a tip please?