Questions related to the mathematical aspects of Einstein's theory of relativity. For the physics and its interpretations, please ask at the physics.SE. You may also consider the tags (differential-geometry) and (pde).
Mathematical topics within the theory or relativity include:
- Minkowsky spacetime;
- the metric tensor in general relativity;
- Lorentzian manifolds;
- Solutions of the Einstein field equations;
- Lorentz covariance;
- the Poincaré group