null infinity
null infinity noun: 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.
Noun
null infinity (plural null infinities)
- 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.
Forms of null infinity
| plural | null infinities |
|---|
Origin of null infinity
From 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.
Questions about null infinity
- What does null infinity mean?
- Null infinity means 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.
- What part of speech is null infinity?
- Null infinity is a noun.
- What is the plural of null infinity?
- The plural of null infinity is null infinities.
Words near null infinity in the dictionary
Source and license
Adapted from Wiktionary: null infinity (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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