Exact solutions in general relativity

Fluid solution

In general relativity, a fluid solution is an exact solution of the Einstein field equation in which the gravitational field is produced entirely by the mass, momentum, and stress density of a fluid. In astrophysics, fluid solutions are often employed as stellar models. (It might help to think of a perfect gas as a special case of a perfect fluid.) In cosmology, fluid solutions are often used as cosmological models. (Wikipedia).

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Symmetric matrix | Linear independence | Dust solution | Exact solutions in general relativity | Schwarzschild metric | Static spherically symmetric perfect fluid | Characteristic polynomial | Relativistic disk | Gröbner basis | Four-velocity | Stress–energy tensor | Vector field | Lorentz group | Newton's identities