Its namesake pseudo-Riemannian metric signature allows its essential coordinate to include the imaginary number root negative one, which is multiplied by time and the speed of light in special relativity.
It may include a pair consisting of a spinor field equivalent to the Levi-Civita connection and a complex conjugate spinor field known as a twistor, and it contains a four-element vector that undergoes the Lorentz transformation. Its namesake pseudo-Riemannian metric signature allows its essential coordinate to include the imaginary number root negative one, which is multiplied by time and the speed of light in special relativity. FTP, name this mathematical space characterized by a gravitationally variant metric signature, a Euclidean three-space plus the time dimension named for a teacher of Einstein.
It may include a pair consisting of a spinor field equivalent to the Levi-Civita connection and a complex conjugate spinor field known as a twistor, and it contains a four-element vector that undergoes the Lorentz transformation.
Minkowski space