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- Hidekazu Nariai (Nariai Lambdavacuum solution),
- Gernot Neugebauer (Neugebauer/Meinel dust disk solution),
- Ezra Ted Newman (Newman–Penrose formalism, Kerr–Newman black hole solution, Janis–Newman–Winicour solution, NUT vacuum, RT spacetimes, relation of lensing to Weyl tensor),
- Wei-Tou Ni (competing theory),
- Gunnar Nordström (competing theory, RN electrovacuum),
- Kenneth Nordtvedt (Nordtvedt effect, PPN formalism, competing theory),
- Igor D. Novikov (Novikov chart in Schwarschild vacuum, No hair theorem, Accretion disks around black holes, monograph),
Read more about this topic: Contributors To General Relativity