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About: Exact solutions in general relativity     Goto   Sponge   NotDistinct   Permalink

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Type: yago:Abstraction100002137yago:Matter100020827yago:Mixture114586258yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921yago:Solution114589223yago:Substance100019613yago:WikicatExactSolutionsInGeneralRelativity New Facet based on Instances of this Class

In general relativity, an exact solution is a solution of the Einstein field equations whose derivation does not invoke simplifying assumptions, though the starting point for that derivation may be an idealized case like a perfectly spherical shape of matter. Mathematically, finding an exact solution means finding a Lorentzian manifold equipped with tensor fields modeling states of ordinary matter, such as a fluid, or classical non-gravitational fields such as the electromagnetic field.