Chromatic Homotopy Theory
《Chromatic Homotopy Theory》 · 第 347–348 页 · Section 11.2.1 的对象条件与 Section 11.2.3 的完整定义；本书 complement 指移去邻域内部的约定
A link in a 3-manifold \(M\) is a compact submanifold of dimension one. Being compact, it consists of finitely many circles, and a connected link is called a knot. […] The tubular neighbourhood of a link \(L\) in an orientable \(M\) consists of solid tori by Proposition 1.1.13, and the link complement of \(L\) is the three-manifold with boundary obtained from \(M\) by removing the interiors of these solid tori. If \(M\) is compact, the link complement also is.