 143
 1
 Problem Statement
 Problem attached as image
 Relevant Equations

## \nabla^a F_{ab} = 0 ##
## \nabla_a F_{bc} + \nabla_b F_{ca} + \nabla_c F_{ab} = 0 ##
I'm confused by this question, from minimal coupling shouldn't the answer simply be ## \nabla^a \nabla_a F_{bc} = 0 ##? Any help would be appreciated.
EDIT: I should also point out ##F_{ab}## is the EM tensor.
EDIT: I should also point out ##F_{ab}## is the EM tensor.
Attachments

20.3 KB Views: 35