Speaker
Dr
Carlo Collari
(Università di Pisa)
Description
Strongly invertible links are collections of disjoint oriented circles in the tri-dimensional space together with an involution preserving the components and reversing the orientation. In this talk we will introduce a family of invariants of strongly invertible links which are analogues of the sl(n) polynomials for links; in particular, they are Laurent polynomials in the variable q and are parameterised by a positive natural number. After a brief discussion on the effectiveness of these invariants, we will give a characterisation of them in terms of skein relations. We will conclude with some applications and a comparison with other known invariants of strongly invertible links.
Primary author
Dr
Carlo Collari
(Università di Pisa)
