On the topological nature of Volterra's theorem
On the Topology of Black Lenses
On the topology of stationary black holes
On the topology of untrapped surfaces
On the topology of vacuum spacetimes
On the torsion effects of a relativistic spin fluid in early cosmology
On the trace anomaly and the energy-momentum conservation of quantum fields at D=2 in classical curved backgrounds
On the Trace-Free Einstein Equations as a Viable Alternative to General Relativity
On the triviality of certain non-Riemannian models of gravitation
On the Tunnelling Through the Black Hole Horizon
On the twin paradox in a universe with a compact dimension
On the twin paradox in static spacetimes: I. Schwarzschild metric
On the two approaches to the data analysis of the Cassini interplanetary relativity experiment
On the two-body problem in general relativity
On the Ultrarelativistic Limit of General Relativity
On the uniqueness of harmonic coordinates
On the uniqueness of the expected stress-energy tensor in renormalizable field theories
On the universality of low-energy string model
On the universality of the Carter and McLenaghan formula
On the Universality of the Entropy-Area Relation