On the solution of the initial value constraints for general relativity coupled to matter in terms of Ashtekar's variables
On the Solution Space of Differentially Rotating Neutron Stars in General Relativity
On the Solution to the "Frozen Star" Paradox, Nature of Astrophysical Black Holes, non-Existence of Gravitational Singularity in the Physical Universe and Applicability of the Birkhoff's Theorem
On the Solutions of Einstein Equations with Massive Point Source
On the solutions of the Cartan equation in Metric Affine Gravity
On the sources of static plane symmetric vacuum space-times
On the Space of 3-dimensional Homogeneous Riemannian Manifolds
On the Space Time of a Galaxy
On the Space-Time Geometry of Quantum Systems
On the space-times admitting two shear-free geodesic null congruences
On the spectral shift and the time delay of light in a Rindler accelerated frame
On the spectrum of relativistic Schroedinger equation in finite differences
On the Speed of Gravity and Relativistic v/c Corrections to the Shapiro Time Delay
On the spherically symmetric Einstein-Yang-Mills-Higgs equations in Bondi coordinates
On the spin of gravitational bosons
On the spin-rotation-gravity coupling
On the spinfoam expansion in cosmology
On the spinning C-metric
On the spontaneous breaking of Lorentz invariance
On the Stability of a class of Modified Gravitational Models