1. New skein invariants of links.
- Author
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Kauffman, Louis H. and Lambropoulou, Sofia
- Subjects
POLYNOMIALS ,GENERALIZATION ,MATHEMATICAL invariants ,EVIDENCE ,KNOT theory ,ALGEBRA - Abstract
We study new skein invariants of links based on a procedure where we first apply a given skein relation only to crossings of distinct components, so as to produce collections of unlinked knots. We then evaluate the resulting knots using the given invariant. A skein invariant can be computed on each link solely by the use of skein relations and a set of initial conditions. The new procedure, remarkably, leads to generalizations of the known skein invariants. We make skein invariants of classical links, H [ R ] , K [ Q ] and D [ T ] , based on the invariants of knots, R , Q and T , denoting the regular isotopy version of the Homflypt polynomial, the Kauffman polynomial and the Dubrovnik polynomial. We provide skein theoretic proofs of the well-definedness of these invariants. These invariants are also reformulated into summations of the generating invariants (R , Q , T) on sublinks of a given link L , obtained by partitioning L into collections of sublinks. These summations exhibit the tight and surprising relationship between our generalized skein-theoretic procedure and the structure of sublinks of a given link. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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