Pacific Journal of Mathematics
We introduce a theory of virtual Legendrian knots. A virtual Legendrian knot is a cooriented wavefront on an oriented surface up to Legendrian isotopy of its lift to the unit cotangent bundle and stabilization and destabilization of the surface away from the wavefront. We show that the groups of Vassiliev invariants of virtual Legendrian knots and of virtual framed knots are isomorphic. In particular, Vassiliev invariants cannot be used to distinguish virtual Legendrian knots that are isotopic as virtual framed knots and have equal virtual Maslov numbers.
Virtual knot, Legendrian knot, Vassiliev invariant
© the authors
Cahn, Patricia and Levi, Asa, "Vassiliev Invariants of Virtual Legendrian Knots" (2015). Mathematics and Statistics: Faculty Publications, Smith College, Northampton, MA.