## Gauge invariant description of weak gravitational field on a spherically symmetric background

- Details
- Written by Piotr Waluk

We construct a formalism for analysis of the true degrees of freedom in the linearized Cauchy problem for the Einstein equation on a spherically symmetric vacuum background with cosmological constant. Our approach does not require an *a priori* splitting of the data into spherical harmonics, but is compatible with it. Some motivaton for our method and several simple applications will also be presented.