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Trace-reversed metric perturbation ( $\overset{ˉ}{h}_{μν}$ )

In four dimensions, the trace-reversed perturbation is

\overset{ˉ}{h}_{μν} = h_{μν} - \frac{1}{2} η_{μν} h, h = η^{ρ σ} h_{ρ σ} .

Trace reversal simplifies the linearized Einstein equations.

Table of contents 91 3
- Lorenz gauge in linearized gravity Trace-reversed metric perturbation 73 2
  - Residual gauge symmetry of linearized gravity Lorenz gauge in linearized gravity 21
  - Plane gravitational wave in linearized gravity Lorenz gauge in linearized gravity 27

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