English

Affine quantum super Schur-Weyl duality

Representation Theory 2019-01-01 v1 Number Theory Quantum Algebra

Abstract

The Schur-Weyl duality, which started as the study of the commuting actions of the symmetric group SdS_d and GL(n,C)\mathrm{GL}(n,\mathbb{C}) on VdV^{\otimes d} where V=CnV=\mathbb{C}^n, was extended by Drinfeld and Jimbo to the context of the finite Iwahori-Hecke algebra Hd(q2)H_d(q^2) and quantum algebras Uq(gl(n))U_q(\mathrm{gl}(n)), on using universal RR-matrices, which solve the Yang-Baxter equation. There were two extensions of this duality in the Hecke-quantum case: to the affine case, by Chari and Pressley, and to the super case, by Moon and by Mitsuhashi. We complete this chain of works by completing the cube, dealing with the general affine super case, relating the commuting actions of the affine Iwahori-Hecke algebra Hda(q2)H^a_d(q^2) and of the affine quantum Lie superalgebra Uq,aσ(sl(m,n))U_{q,a}^\sigma(\mathrm{sl}(m,n)) using the presentation by Yamane in terms of generators and relations, acting on the ddth tensor power of the superspace V=Cm+nV=\mathbb{C}^{m+n}. Thus we construct a functor and show it is an equivalence of categories of Hda(q2)H_d^a(q^2) and Uq,aσ(sl(m,n))U_{q,a}^\sigma(\mathrm{sl}(m,n))-modules when d<n=m+nd<n'=m+n.

Keywords

Cite

@article{arxiv.1812.11823,
  title  = {Affine quantum super Schur-Weyl duality},
  author = {Yuval Z. Flicker},
  journal= {arXiv preprint arXiv:1812.11823},
  year   = {2019}
}

Comments

35 pages, 1 figure. This is a slightly improved exposition of the article which appeared Dec. 1, 2018 online in "Algebras and Representation Theory", http://doi.org/10.1007/s10468-018-9841-1

R2 v1 2026-06-23T06:59:50.688Z