English

Solutions of the $sl_2$ qKZ equations modulo an integer

Quantum Algebra 2022-08-23 v1 Mathematical Physics math.MP Number Theory

Abstract

We study the qKZ difference equations with values in the nn-th tensor power of the vector sl2sl_2 representation VV, variables z1,,znz_1,\dots,z_n and integer step κ\kappa. For any integer NN relatively prime to the step κ\kappa, we construct a family of polynomials fr(z)f_r(z) in variables z1,,znz_1,\dots,z_n with values in VnV^{\otimes n} such that the coordinates of these polynomials with respect to the standard basis of VnV^{\otimes n} are polynomials with integer coefficients. We show that the polynomials fr(z)f_r(z) satisfy the qKZ equations modulo NN. Polynomials fr(z)f_r(z) are modulo NN analogs of the hypergeometric solutions of the \qKZ/ equations given in the form of multidimensional Barnes integrals.

Keywords

Cite

@article{arxiv.2208.09721,
  title  = {Solutions of the $sl_2$ qKZ equations modulo an integer},
  author = {Evgeny Mukhin and Alexander Varchenko},
  journal= {arXiv preprint arXiv:2208.09721},
  year   = {2022}
}

Comments

Latex, 21 pages

R2 v1 2026-06-25T01:50:29.555Z