In this paper finite type invariants (also known as Vassiliev invariants) of pure braids are considered from a group-theoretic point of view. New results include a construction of a universal invariant with integer coefficients based on the Magnus expansion of a free group and a calculation of numbers of independent invariants of each type for all pure braid groups. © Cambridge Philosophical Society.
|Number of pages||14|
|Journal||Mathematical Proceedings of the Cambridge Philosophical Society|
|Publication status||Published - 2002|