Matches in DBpedia 2015-10 for { ?s ?p "In differential topology, an exotic sphere is a differentiable manifold M that is homeomorphic but not diffeomorphic to the standard Euclidean n-sphere. That is, M is a sphere from the point of view of all its topological properties, but carrying a smooth structure that is not the familiar one (hence the name "exotic").The first exotic spheres were constructed by John Milnor (1956) in dimension n = 7 as S3-bundles over S4."@en }
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- Exotic_sphere comment "In differential topology, an exotic sphere is a differentiable manifold M that is homeomorphic but not diffeomorphic to the standard Euclidean n-sphere. That is, M is a sphere from the point of view of all its topological properties, but carrying a smooth structure that is not the familiar one (hence the name "exotic").The first exotic spheres were constructed by John Milnor (1956) in dimension n = 7 as S3-bundles over S4.".