- #1

MichaelAlexDavM

- 9

- 1

- Homework Statement:
- I know what I need to do but I am stuck on one of the steps

- Relevant Equations:
- Levi-civita and Kronecker delta identities

εikl εjmngkmMkn =

εikl εjknMkn = (in book it changed sign to -εikl εjknMkn - Why? )

By identity

εikl εnjkMln = (δinδkj - δijδkn)Mkn = ?

I then get ..

Mji - δij Mnn ( is this correct ?)

There 's more to the question but if can get this part right, I should be able to complete the rest.

εikl εjknMkn = (in book it changed sign to -εikl εjknMkn - Why? )

By identity

εikl εnjkMln = (δinδkj - δijδkn)Mkn = ?

I then get ..

Mji - δij Mnn ( is this correct ?)

There 's more to the question but if can get this part right, I should be able to complete the rest.