Mathematical Physics: Classical Mechanics
《Mathematical Physics: Classical Mechanics》 · 第 129 页 · Chapter 12，Theorem 12.14 后 framed link 的说明
In using this result the disjoint copies of \(S^1\times D^2\) that are to be removed from \(S^3\) are thought of as a neighbourhood of a link in \(S^3\). In order to specify the parametrisation of this neighbourhood by copies of \(S^1\times D^2\), parallels (in the \(S^1\times D^2\) structures) to the link components (the cores of the solid tori) are specified. […] Alternatively the framed link can be taken to be a link of thin bands (annuli), the two boundary components of each annulus being a component of the link and its parallel.