English

Gelfand-Tsetlin bases of representations for super Yangian and quantum affine superalgebra

Quantum Algebra 2025-04-15 v3 Representation Theory

Abstract

We give explicit actions of Drinfeld generators on Gelfand-Tsetlin bases of super Yangian modules associated with skew Young diagrams. In particular, we give another proof that these representations are irreducible. We study irreducible tame Y(gl11)\mathrm Y(\mathfrak{gl}_{1|1})-modules and show that a finite-dimensional irreducible Y(gl11)\mathrm Y(\mathfrak{gl}_{1|1})-module is tame if and only if it is thin. We also give the analogous statements for quantum affine superalgebra of type A.

Keywords

Cite

@article{arxiv.2103.08758,
  title  = {Gelfand-Tsetlin bases of representations for super Yangian and quantum affine superalgebra},
  author = {Kang Lu},
  journal= {arXiv preprint arXiv:2103.08758},
  year   = {2025}
}

Comments

23 pages. Final Version. To appear in Lett. Math. Phys