The intrinsic derivative and centrifugal forces in general relativity: I. Theoretical foundations
The intrinsic derivative and centrifugal forces in general relativity: II. Applications to circular orbits in some familiar stationary axisymmetric spacetimes
The inverse mean curvature flow in Robertson-Walker spaces and its application to cosmology
The inverse problem for pulsating neutron stars: A ``fingerprint analysis'' for the supranuclear equation of state
The Inverse Scale Factor in Isotropic Quantum Geometry
The inverse scattering method for cylindrical gravitational waves
The Inverse Variational Problem for Autoparallels
The IR stability of de Sitter QFT: Physical initial conditions
The IR stability of de Sitter QFT: results at all orders
The IR stability of de Sitter: Loop corrections to scalar propagators
The Isaacson expansion in quantum cosmology
The isolation of gravitational instantons: Flat tori V flat R^4
The isometry groups of asymptotically flat, asymptotically empty space-times with timelike ADM four-momentum
The isotropic blackbody CMB as evidence for a homogeneous universe
The Isotropy of Compact Universes
The Israel Theorem: What is Nature Trying to Tell Us?
The Issue of Choosing Nothing: What Determines the Low Energy Vacuum State of Nature?
The issue of photons in dielectrics: Hamiltonian viewpoint
The issue of time in generally covariant theories and the Komar-Bergmann approach to observables in general relativity
The Issue of Time in Quantum Geometrodynamics