null infinity

English - English

Definition of null infinity in English English dictionary

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

Hyphenation

null in·fin·i·ty

Turkish pronunciation

nʌl înfînıti

Pronunciation

/ˈnəl ənˈfənətē/ /ˈnʌl ɪnˈfɪnətiː/

Etymology

() 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.