16 citations · 48 across the 8 of their papers we have counts for
8 papers
On the extension of the concept of Thin Shells to The Einstein-Cartan Theory
Georges F. Bressange
This paper develops a theory of thin shells within the context of the Einstein-Cartan theory by extending the known formalism of general relativity. In order to perform such an ext…
Colliding Plane Impulsive Gravitational Waves
C. Barrabès, G. F. Bressange, P. A. Hogan
When two non-interacting plane impulsive gravitational waves undergo a head-on collision, the vacuum interaction region between the waves after the collision contains backscattered…
Peeling properties of lightlike signals in General Relativity
G. F. Bressange, P. A. Hogan
The peeling properties of a lightlike signal propagating through a general Bondi-Sachs vacuum spacetime and leaving behind another Bondi-Sachs vacuum space-time are studied. We dem…
Plane Light-Like Shells and Impulsive Gravitational Waves in Scalar-Tensor Theories of Gravity
G. F. Bressange
We study gravitational plane impulsive waves and electromagnetic shock waves in a scalar-tensor theory of gravity of the Brans-Dicke type. In vacuum, we present an exact solution o…
Abrupt Changes in the Multipole Moments of a Gravitating Body
C. Barrabès, G. F. Bressange, P. A. Hogan
An example is described in which an asymptotically flat static vacuum Weyl space-time experiences a sudden change across a null hypersurface in the multipole moments of its isolate…
Colliding Plane Waves in Einstein-Maxwell Theory
C. Barrabès, G. F Bressange, P. A. Hogan
Recently a simple solution of the vacuum Einstein-Maxwell field equations was given describing a plane electromagnetic shock wave sharing its wave front with a plane gravitational…
Implications of Spontaneous Glitches in the Mass and Angular Momentum in Kerr Space-Time
C. Barrabès, G. F. Bressange, P. A. Hogan
The outward-pointing principal null direction of the Schwarzschild Riemann tensor is null hypersurface-forming. If the Schwarzschild mass spontaneously jumps across one such hypers…
Some Physical Consequences of Abrupt Changes in the Multipole Moments of a Gravitating Body
C. Barrabes, G. F. Bressange, P. A. Hogan
The Barrabès-Israel theory of light-like shells in General Relativity is used to show explicitly that in general a light-like shell is accompanied by an impulsive gravitational wav…