INTACT. “The diffeomorphism invariance amounts to a purely relative description, a self-consistent theory without external points of reference (parameterization invariant).”
https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf
INTACT. “The diffeomorphism invariance amounts to a purely relative description, a self-consistent theory without external points of reference (parameterization invariant).”
https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf