On the Existence of Finite Type Link Homotopy Invariants
Abstract
Description
We show that for links with at most 5 components, the only finite type homotopy invariants are products of the linking numbers. In contrast, we show that for links with at least 9 components, there must exist finite type homotopy invariants which are not products of the linking numbers. This corrects previous errors of the first author.
13 pages, 5 figures
13 pages, 5 figures