On the analyticity of certain stationary nonvacuum Einstein space-times
On the b-boundary of the closed Friedman-model
On the collapse of a spherically symmetric star.
On the Complex Structure of the Universe
On the Convergence in Effective Loop Quantum Cosmology
On the derivation of Hawking radiation associated with the formation of a black hole
On the DIRAC-INFELD-PLEBAŃSKI Delta Function
On the existence of solutions to Einstein's equation with non-zero Bondi news
On the hyperbolicity of Einstein's and other gauge field equations
On the inconsistency of a photon creation mechanism in an expanding universe
On the instability of the n = 1 Einstein-Yang-Mills black holes and mathematically related systems.
On the invariant mass conjecture in general relativity
On the nature of turbulence
On the occurrence of naked singularities in general relativity
On the origin of ultra high energy cosmic ray particles
On the regularization of the Kepler problem
On the regularization of the Kepler problem
On the Robinson theorem and shearfree geodesic null congruences
On the spherical symmetry of static perfect fluids in general relativity
On the spherical symmetry of static stellar models