 Contributors to the mathematical background for general relativity

The mathematical background for general relativity is rich and multifaceted, drawing upon various fields of mathematics. Here are some key contributors and their contributions to the mathematical framework that underpins general relativity: 1. **Non-Euclidean Geometry**: - **Nikolai Lobachevsky and János Bolyai**: Independently developed hyperbolic geometry, which laid the groundwork for understanding curved spaces.