# For a fixed Turaev shadow Jones-Vassiliev invariants depend polynomially on the gleams

### Jens Lieberum

Universität Basel, Switzerland

## Abstract

We use Turaev's technique of shadows and gleams to parametrize the set of all knots in S 3 with the same Hopf projection. We show that the Vassiliev invariants arising from the Jones polynomial Jt (K) are polynomials in the gleams, i.e., for $n \geq 2$ , the n-th order Vassiliev invariant un, defined by $J_{e^x}(K) = \sum_{n = 0}^{\infty}u_n(K)x^n$ , is a polynomial of degree 2n in the gleams.

## Cite this article

Jens Lieberum, For a fixed Turaev shadow Jones-Vassiliev invariants depend polynomially on the gleams. Comment. Math. Helv. 72 (1997), no. 1, pp. 110–127

DOI 10.1007/PL00000362