3-manifold
= 3-manifold
{wiki}
= Three-manifold
{synonym}
A three-manifold is a <topological manifold> locally modeled on $\mathbb R^3$, or on a half-space at its boundary.
= 3-manifold
{wiki}
= Three-manifold
{synonym}
A three-manifold is a <topological manifold> locally modeled on $\mathbb R^3$, or on a half-space at its boundary.