Physical Review Letters · 1965 · 23 citations · 3 references
Natural SciencesPhysicsGravitationGravityTheoretical PhysicsEinstein Field EquationsGauge TheoryGeneral RelativityQuantum Field TheoryQuantum GravitySymmetry BreakingGauge SymmetriesInternal Symmetry GroupsQuantum GeometrySymmetriesSymmetry Groups In Spacetime
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Asymptotic Symmetries in Gravitational Theory
Rainer K. Sachs · Physical Review · 1962 · 1K citations
Mass differences and Lie Algebras of Finite Order
L. O’Raifeartaigh · Physical Review Letters · 1965 · 142 citations
Commutators on Characteristic Surfaces
Arthur Komar · Physical Review · 1964 · 26 citations