18 citations · 31 across the 5 of their papers we have counts for
5 papers
Cylindrical Gravitational Waves in Expanding Universes: Explicit Pulse Solutions
Robert H. Gowdy
Solutions analogous to the Weber-Wheeler cylindrical pulse waves are found for the case of cylindrical gravitational waves in an expanding universe. These pulse solutions mimic the…
Cylindrical gravitational waves in expanding universes: Models for waves from compact sources
Robert H. Gowdy, B. Douglas Edmonds
New boundary conditions are imposed on the familiar cylindrical gravitational wave vacuum spacetimes. The new spacetime family represents cylindrical waves in a flat expanding (Kas…
The compactification of initial data on constant mean curvature time slices in spherically symmetric spacetimes
Robert H. Gowdy
Conformal mappings of surfaces of constant mean curvature onto compact bounded background spaces are constructed for Minkowski space-time and for Schwarzschild black hole spacetime…
Affine projection tensor geometry: Lie derivatives and isometries
Robert H. Gowdy
The generalized projection-tensor geometry introduced in an earlier paper is extended. A compact notation for families of projected objects is introduced and used to summarize the…
Affine Projection Tensor Geometry: Decomposing the Curvature Tensor When the Connection is Arbitrary and the Projection is Tilted
Robert H. Gowdy
This paper constructs the geometrically natural objects which are associated with any projection tensor field on a manifold with any affine connection. The approaches to projection…