Topological surface
= Topological surface
{wiki}
= Surface
{synonym}
A topological surface is a <Hausdorff space> with a countable basis in which every point has a neighborhood homeomorphic to an open subset of $\mathbb R^2$.
= Topological surface
{wiki}
= Surface
{synonym}
A topological surface is a <Hausdorff space> with a countable basis in which every point has a neighborhood homeomorphic to an open subset of $\mathbb R^2$.