outer trapped surface

outer trapped surface

[¦au̇d·ər ¦trapt ′sər·fəs]
(relativity)
A compact, spacelike, two-dimensional surface in a space-time, such that outgoing light rays perpendicular to the surface are not diverging; whether ingoing light rays are converging or not is immaterial.
References in periodicals archive ?
The first two chapters survey recent results on multiplicity-free representations of compact Lie groups and the existence and properties of marginally outer trapped surfaces. Other topics include the stationary n-body problem in general relativity, asymptotic gluing of asymptotically hyperbolic vacuum initial data sets, the global geometry of spacetimes with toroidal or hyperbolic symmetry, and rates of decay for structural damped models with coefficients strictly increasing in time.