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About: Congruence (general relativity)     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatLorentzianManifoldsyago:Artifact100021939yago:Conduit103089014yago:Manifold103717750yago:Object100002684yago:Passage103895293yago:PhysicalEntity100001930yago:Pipe103944672yago:YagoGeoEntityyago:YagoPermanentlyLocatedEntityyago:Tube104493505yago:Way104564698yago:Whole100003553 New Facet based on Instances of this Class

In general relativity, a congruence (more properly, a congruence of curves) is the set of integral curves of a (nowhere vanishing) vector field in a four-dimensional Lorentzian manifold which is interpreted physically as a model of spacetime. Often this manifold will be taken to be an exact or approximate solution to the Einstein field equation.