Behold the Manifold, the Concept that Changed How Mathematicians View Space
In the mid-19th century, Bernhard Riemann conceived of a new way to think about mathematical spaces, providing the foundation for modern geometry and physics.
Link :
https://www.wired.com/story/behold-the-manifold-the-concept-that-changed-how-mathematicians-view-space/
Link :
https://www.wired.com/story/behold-the-manifold-the-concept-that-changed-how-mathematicians-view-space/