Homflypt skein theory, string topology and -categories
Abstract
We show that relations in Homflypt type skein theory of an oriented -manifold are induced from a -groupoid defined from the fundamental -groupoid of a space of singular links in . The module relations are defined by homomorphisms related to string topology. They appear from a representation of the groupoid into free modules on a set of model objects. The construction on the fundamental -groupoid is defined by the singularity stratification and relates Vassiliev and skein theory. Several explicit properties are discussed, and some implications for skein modules are derived.