Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
gptkb:Riemannian_manifold |
| gptkbp:category |
gptkb:topology
simply connected 4-manifold |
| gptkbp:compact |
yes
|
| gptkbp:dimensions |
4
|
| gptkbp:discoveredBy |
gptkb:Michael_Freedman
|
| gptkbp:firstDescribed |
1982
|
| https://www.w3.org/2000/01/rdf-schema#label |
E8 manifold
|
| gptkbp:intersection_form |
gptkb:E8_lattice
|
| gptkbp:isomorphicTo |
no smooth 4-manifold
|
| gptkbp:orientable |
yes
|
| gptkbp:relatedTo |
gptkb:Donaldson's_theorem
gptkb:topology gptkb:Freedman's_theorem 4-manifolds exotic manifolds |
| gptkbp:simply_connected |
yes
|
| gptkbp:smooth_structure |
none (does not admit a smooth structure)
|
| gptkbp:bfsParent |
gptkb:exceptional_Lie_group_E8
|
| gptkbp:bfsLayer |
6
|