# nLab homology sphere

Contents

### Context

#### Spheres

n-sphere

low dimensional n-spheres

# Contents

## Idea

A homology sphere is a topological space which need not be homeomorphic to an n-sphere, but which has the same ordinary homology as an $n$-sphere.

## Redirects

Last revised on December 1, 2019 at 14:13:12. See the history of this page for a list of all contributions to it.