Keywords

#homology_sphere

Homology sphere

Topological manifold whose homology coincides with that of a sphere

In algebraic topology, a homology sphere is an n-manifold X having the homology groups of an n-sphere, for some integer . That is,

Mon 27th

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Homology sphere 3-sphere Poincaré sphere Homology (mathematics) Sphere N-sphere Homotopy sphere Casson invariant List of manifolds 3-manifold
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