Mathematische Annalen · 1990 · 12 citations · 3 references
Natural SciencesMathematicsPhysicsCosmologyGravitationRelativityEinstein Field EquationsGeneral RelativityGravitational FieldsMathematical RelativityPeriodic OrbitsSpacetime GeometryEquations Of Motion In General RelativityParticle Orbits In General RelativityPeriodic MotionTime-variable Gravity Fields
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A Morse theory for geodesics on a Lorentz manifold
Karen Uhlenbeck · Topology · 1975 · 81 citations