Milnor's construction of exotic 7-spheres

GPTKB entity

Statements (20)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:citation gptkb:Milnor,_J._(1956)._On_manifolds_homeomorphic_to_the_7-sphere._Annals_of_Mathematics,_64(2),_399-405.
gptkbp:field differential topology
https://www.w3.org/2000/01/rdf-schema#label Milnor's construction of exotic 7-spheres
gptkbp:influenced study of smooth structures on manifolds
gptkbp:introduced gptkb:John_Milnor
gptkbp:introducedIn 1956
gptkbp:method sphere bundle over the 4-sphere
gptkbp:objectConstructed gptkb:exotic_7-sphere
gptkbp:publishedIn gptkb:Annals_of_Mathematics
gptkbp:purpose to construct smooth manifolds homeomorphic but not diffeomorphic to the 7-sphere
gptkbp:relatedTo gptkb:Kervaire-Milnor_classification
differentiable structure
exotic sphere
homotopy sphere
parallelizable manifold
gptkbp:result existence of at least 7 differentiable structures on the 7-sphere
gptkbp:uses gptkb:S^3-bundles_over_S^4
gptkbp:bfsParent gptkb:John_W._Milnor
gptkbp:bfsLayer 4