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Algebra of quantum {cal C}-polynomials

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arxiv 2009.11641 v1 pith:X3OKVILY submitted 2020-09-24 hep-th math.GTmath.QA

Algebra of quantum ${\cal C}$-polynomials

classification hep-th math.GTmath.QA
keywords polynomialsequationscoefficientsderivedifferenceentireknotmuch
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abstract

Knot polynomials colored with symmetric representations of $SL_q(N)$ satisfy difference equations as functions of representation parameter, which look like quantization of classical ${\cal A}$-polynomials. However, they are quite difficult to derive and investigate. Much simpler should be the equations for coefficients of differential expansion nicknamed quantum ${\cal C}$-polynomials. It turns out that, for each knot, one can actually derive two difference equations of a finite order for these coefficients, those with shifts in spin $n$ of the representation and in $A=q^N$. Thus, the ${\cal C}$-polynomials are much richer and form an entire ring. We demonstrate this with the examples of various defect zero knots, mostly discussing the entire twist family.

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Cited by 3 Pith papers

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