On the characteristic and deformation varieties of a knot

By Stavros Garoufalidis. 2003

231 citations recorded by the source corpus.

The colored Jones function of a knot is a sequence of Laurent polynomials in one variable, whose nth term is the Jones polynomial of the knot colored with the n-dimensional irreducible representation of sl2. It was recently shown by TTQ Le and the author that the colored Jones function of a knot is q-holonomic, ie, that it satisfies a nontrivial linear recursion relation with appropriate coefficients. Using holonomicity, we in- troduce a geometric invariant of a knot: the characteristic variety, an affine 1-dimensional variety in C 2 . We then compare it with the character variety of SL2(C) representations, viewed from the boundary. The comparison is stated as a conjecture which we verify (by a direct computation) in the case of the trefoil and figure eight knots. We also propose a geometric relation between the peripheral subgroup of the knot group, and basic operators that act on the colored Jones function. We also define a noncommutative version (the so-called noncommutative A-polynomial) of the characteristic variety of a knot. Holonomicity works well for higher rank groups and goes beyond hyperbolic geometry, as we explain in the last chapter. AMS Classification 57N10; 57M25

Subfields: Computational Mechanics, Geometry and Topology

View Paper: https://www.semanticscholar.org/paper/804e4cbabdabf97559f59555303bee604a6468ae

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In Computational Mechanics

  1. Thang T. Q. Lê
  2. Tudor Dimofte
  3. Sergei Gukov
  4. Jonatan Lenells
  5. Don Zagier
  6. P. Sułkowski
  7. D. Gaiotto
  8. Kazuhiro Hikami

In Geometry and Topology

  1. Tudor Dimofte
  2. Sergei Gukov
  3. D. Gaiotto
  4. Kazuhiro Hikami
  5. P. Sułkowski
  6. Jonatan Lenells
  7. Thang T. Q. Lê
  8. Don Zagier

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