English

Subfactors associated to compact Kac algebras

Operator Algebras 2007-05-23 v3 Quantum Algebra

Abstract

We construct inclusions of the form (B0P)G(B1P)G(B_0\otimes P)^G\subset (B_1\otimes P)^G, where GG is a compact quantum group of Kac type acting on an inclusion of finite dimensional \c^*-algebras B0B1B_0\subset B_1 and on a II1II_1 factor PP. Under suitable assumptions on the actions of GG, this is a subfactor, whose Jones to er and standard invariant can be computed by using techniques of A. Wassermann. The subfactors associated to subgroups of compact groups, to projective representations of compact groups, to finite quantum groups, to finitely generated discrete groups, to vertex models and to spin models are of this form.

Keywords

Cite

@article{arxiv.math/9806054,
  title  = {Subfactors associated to compact Kac algebras},
  author = {Teodor Banica},
  journal= {arXiv preprint arXiv:math/9806054},
  year   = {2007}
}

Comments

14 pages, version to be published

R2 v1 2026-07-22T17:58:51.338Z