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.