causal boundary
causal boundary
[¦kȯz·əl ′bau̇n·drē] (relativity)
A boundary attached to a space-time that depends only on the causal structure; it does not distinguish between boundary points at finite distances (singularities) or those at infinity. Also known as C boundary.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
We notice that in the action formalism variations of metric tensor should be limited by the Hubble horizon, which represents a
causal boundary of classical spacetime.
McNabb, An initial value theory for linear
causal boundary value problems, Journal of Differential Equations 15(1974) 322-349.
They also introduce the new Busemann compactification, relating it to the previous two completions, and give a full description of the
causal boundary of any standard conformally stationary spacetime.
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