Irreducibility of q-difference operators and the knot 7_4

Abstract

Our goal is to compute the minimal-order recurrence of the colored Jones polynomial of the 7_4 knot, as well as for the first four double twist knots. As a corollary, we verify the AJ Conjecture for the simplest knot 7_4 with reducible non-abelian SL(2,C) character variety. To achieve our goal, we use symbolic summation techniques of Zeilberger's holonomic systems approach and an irreducibility criterion for q-difference operators. For the latter we use an improved version of the qHyper algorithm of Abramov-Paule-Petkovsek to show that a given q-difference operator has no linear right factors. En route, we introduce exterior power Adams operations on the ring of bivariate polynomials and on the corresponding affine curves.

20 pages, 3 figures, 2 tables

References in corpus (5)

• The colored Jones function is q-holonomic
• A Fast Approach to Creative Telescoping
• Skein-theoretical derivation of some formulas of Habiro
• A unified Witten-Reshetikhin-Turaev invariant for integral homology spheres
• The C-polynomial of a knot

Cited by in corpus (4)

• Creative Telescoping for Holonomic Functions
• Large color $R$-matrix for knot complements and strange identities
• Desingularization in the $q$-Weyl algebra
• The colored Jones polynomial and Kontsevich-Zagier series for double twist knots