marginally outer trapped surface

marginally outer trapped surface

[¦mär·jen·əl·ē ¦au̇d·ər ¦trapt ′sər·fəs]
(relativity)
A spacelike, two-dimensional surface in a space-time such that outgoing null rays perpendicular to the surface are neither diverging nor converging.
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.