Conformally symmetric static fluid spheres.

Conservation laws and integrability conditions for gravitational and Yang-Mills field equations

Conservation Laws, Constants of the Motion, and Hamiltonians

Cosmic vacuum strings and domain walls in Brans-Dicke theory of gravity.

Cosmological consequences of the relativistic theory of gravitation with massive gravitons

Cosmological constraints for a two brane-world system with single equation of state

Cosmological Evolution of an Asymmetric DGP Brane Word Model

Cosmological models that describe particle creation in the early universe and evolve into the "present-day" universe.

Cosmological principle and primordial spinor fields

Cosmological singularity at the Planck scale.

Cosmological Yang-Mills hydrodynamics.

Counterexamples to Parker's theorem

Covariant Electromagnetic Potentials and Fields in Friedmann Universes

Curvature collineations in general relativity. I.

Curvature collineations in general relativity. II.

Curvature of gravitationally bound mechanical systems.

Curvatures of hypersurfaces of transitivity of Bianchi model universes

Cylindrically symmetric thin walls in general relativity.

Cylindrically symmetric viscous fluid universe in Lyra geometry

Cylindrically symmetric viscous universes.