Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4657943 | Topology and its Applications | 2016 | 13 Pages |
Abstract
We define counting and cocycle enhancement invariants of virtual knots using parity biquandles. The cocycle invariants are determined by pairs consisting of a biquandle 2-cocycle ϕ0ϕ0 and a map ϕ1ϕ1 with certain compatibility conditions leading to one-variable or two-variable polynomial invariants of virtual knots. We provide examples to show that the parity cocycle invariants can distinguish virtual knots which are not distinguished by the corresponding non-parity invariants.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
Aaron Kaestner, Sam Nelson, Leo Selker,