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math.SG2004
Conormal bundles, contact homology and knot invariants
Lenhard Ng
We summarize recent work on a combinatorial knot invariant called knot contact homology. We also discuss the origins of this invariant in symplectic topology, via holomorphic curve…
math.SG2004
Legendrian solid-torus links
Lenhard Ng, Lisa Traynor
Differential graded algebra invariants are constructed for Legendrian links in the 1-jet space of the circle. In parallel to the theory for R^3, Poincare-Chekanov polynomials and c…