When can you integrate-by-parts with Lie derivatives?
Special thanks to Ben Mares for coming up with this identity.
There is a nice 4-dimensional Weyl identity that I can never seem to remember off the top of my head; so I decided I need to write this note so I don’t have ...
My talk slides/movies from TG17 and APS17
The Weyl decomposition, further splitting into E/B, and computing in terms of 3+1 objects