On the finiteness of higher knot sums
This paper settles a long-standing problem in high-dimensional knot theory by showing that every \(n\)-knot (n\(\geq 3)\) decomposes as a sum of irreducible knots, and that for a given knot there is a finite upper bound on the number of summands. The proof is a beautiful application of the theory of groups acting on trees.
scientific article; zbMATH DE number 4011443