English

q-deformed algebras $U_q(so_n)$ and their representations

q-alg 2008-02-03 v2 General Relativity and Quantum Cosmology High Energy Physics - Theory Quantum Algebra

Abstract

For the nonstandard qq-deformed algebras Uq(son)U_q(so_n), defined recently in terms of trilinear relations for generating elements, most general finite dimensional irreducible representations directly corresponding to those of nondeformed algebras so(n)so(n) (i.e., characterized by the same sets of only integers or only half-integers as in highest weights of the latter) are given explicitly in a qq-analogue of Gel'fand-Tsetlin basis. Detailed proof, for qq not equal to a root of unity, that representation operators indeed satisfy relevant (trilinear) relations and define finite dimensional irreducible representations is presented. The results show perfect suitability of the Gel'fand-Tsetlin formalism concerning (nonstandard) qq-deformation of so(n)so(n).

Keywords

Cite

@article{arxiv.q-alg/9709036,
  title  = {q-deformed algebras $U_q(so_n)$ and their representations},
  author = {A. M. Gavrilik and N. Z. Iorgov},
  journal= {arXiv preprint arXiv:q-alg/9709036},
  year   = {2008}
}

Comments

LaTeX, 14 pages. Minor corrections. Final version as published in Methods of Functional Analysis and Topology