BabelNet

bn:03406365n

Noun Concept

Categories: Spheres, Homology theory, Topological spaces, 3-manifolds

homology sphere Poincaré homology sphere homology 3-sphere Poincare 3-sphere Poincare dodecahedral space

In algebraic topology, a homology sphere is an n-manifold X having the homology groups of an n-sphere, for some integer n ≥ 1 {\displaystyle n\geq 1}. Wikipedia

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In algebraic topology, a homology sphere is an n-manifold X having the homology groups of an n-sphere, for some integer n ≥ 1 {\displaystyle n\geq 1}. Wikipedia

Topological manifold whose homology coincides with that of a sphere, i.e. trivial except in the top and bottom degrees, where it has a single generator Wikidata

A manifold whose homology is the same as that of some sphere of the same dimension. Wiktionary

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