Lens Space

A lens space $L(p,q)$ is the 3-Manifold obtained by gluing the boundaries of two solid Tori together such that the meridian of the first goes to a $(p,q)$-curve on the second, where a $(p,q)$-curve has $p$ meridians and $q$ longitudes.

References

Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, 1976.