On "many black hole" space-times
On "time-periodic" black-hole solutions to certain spherically symmetric Einstein-matter systems
On $2D$ quantum gravity coupled to a $\s$-model
On (Cosmological) Singularity Avoidance in Loop Quantum Gravity
On 3+1 decompositions with respect to an observer field via differential forms
On 3+1 Dimensional Friedman-Robertson-Walker Universes with Matter
On 3+1 Dimensional Scalar Field Cosmologies
On 4-dimensional cosmological models locally embedded in a 5-dimensional Ricci-flat space
On 4-dimensional Lorentz-structures, Dark energy and Exotic smoothness
On A 5-Dimensional Spinning Cosmic String
On a Bipolar Model of Hyperbolic Geometry and its Relation to Hyperbolic Robertson-Walker Space
On a certain formulation of the Einstein equations
On a Characterization of Geodesic Trajectories and Gravitational Motions
On a choice of the Bondi radial coordinate and news function for the axisymmetric two-body problem
On a class of 2-surface observables in general relativity
On a class of consistent linear higher spin equations on curved manifolds
On a class of invariant coframe operators with application to gravity
On a Class of Riemann-Cartan Space-times of Gödel Type
On a class of stable, traversable Lorentzian wormholes in classical general relativity
On a Classical, Geometric Origin of Magnetic Moments, Spin-Angular Momentum and the Dirac Gyromagnetic Ratio