Congruence (general Relativity)

Congruence (general Relativity)

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.

Read more about Congruence (general Relativity):  Types of Congruences, Relation With Vector Fields, Physical Interpretation, Kinematical Description

Famous quotes containing the word congruence:

    As for butterflies, I can hardly conceive
    of one’s attending upon you; but to question
    the congruence of the complement is vain, if it exists.
    Marianne Moore (1887–1972)