null infinity
In a closed space-time, especially for an Einstein cylinder, null infinity for a given…In a closed space-time, especially for an Einstein cylinder, null infinity for a given point is the limit of convergence of the light cone most distant from the given point. That is, it is the limit of a set of points that each have a time-like separation from every point that has a space-like separation from the given point.
Meaning
1 sensesIn a closed space-time, especially for an Einstein cylinder, null infinity for a given point is the limit of convergence of the light cone most distant from the given point. That is, it is the limit of a set of points that each have a time-like separation from every point that has a space-like separation from the given point.
Origin
From the physics concept of "at infinity" or "far", where fields are small, and the math cFrom the physics concept of "at infinity" or "far", where fields are small, and the math concept of null set. Ironically, a null infinity may be neither far nor a null set.
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Forms
plural: null infinities| Singular | null infinity |
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