A three-manifold is a space that locally looks like Euclidean three-dimensional space
A three-manifold is a space that locally looks like Euclidean three-dimensional space.
A topological space X is a three-manifold if it is a second-countable Hausdorff space and if every point in X has a neighbourhood that is homeomorphic to Euclidean three-space.
|
created |
13 years, 11 months ago by Dmitri Panov |
|
viewed |
32 times |
|
active |
2 years, 8 months ago |
|
editors |
2 |
