January 1965
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207 Reads
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3,002 Citations
Physical Review Letters
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Citations (1)
... Let γ : I → E 4 1 be a null curve which admits a pseudoorthonormal frame field {T, U ; v 1 , v 2 } of vector fields defined along γ such that ⟨U, U ⟩ = ⟨T, T ⟩ = 0, ⟨T, U ⟩ = −1, The next classification theorem was due to Kayhan and Turgay [74]. The notion of trapped surfaces was introduced by R. Penrose in [102], which plays a important role in cosmology and general relativity. A black hole is a trapped region in a space-time enclosed by a marginally trapped surface. ...
- Citing Article
January 1965
Physical Review Letters