English

Hopf-cyclic coefficients in the braided setting

K-Theory and Homology 2023-06-01 v2 Operator Algebras Quantum Algebra

Abstract

Considering the monoidal category C\mathcal{C} obtained as modules over a Hopf algebra HH in a rigid braided category B\mathcal{B}, we prove decomposition results for the Hochschild and cyclic homology categories HH(C)HH(\mathcal{C}) and HC(C)HC(\mathcal{C}) of C\mathcal{C}. This is accomplished by defining a notion of a (stable) anti-Yetter-Drinfeld module with coefficients in a (stable) braided module over B\mathcal{B}. When the stable braided module is HH(B)HH(\mathcal{B}), we recover HH(C)HH(\mathcal{C}) and HC(C)HC(\mathcal{C}). The decomposition of HC(C)HC(\mathcal{C}) now follows from that of HH(B)HH(\mathcal{B}).

Keywords

Cite

@article{arxiv.2305.07739,
  title  = {Hopf-cyclic coefficients in the braided setting},
  author = {Ilya Shapiro},
  journal= {arXiv preprint arXiv:2305.07739},
  year   = {2023}
}

Comments

Typo in Remark 5.7 fixed, added Lemma 4.26 with a definition and remark, and Corollary 4.44 with a definition, 44 pages

R2 v1 2026-06-28T10:33:24.407Z