English

On the braided Connes-Moscovici construction

K-Theory and Homology 2022-06-01 v1 Quantum Algebra

Abstract

In 19981998, Connes and Moscovici defined the cyclic cohomology of Hopf algebras. In 20102010, Khalkhali and Pourkia proposed a braided generalization: to any Hopf algebra HH in a braided category B\mathcal B, they associate a paracocyclic object in B\mathcal B. In this paper we explicitly compute the powers of the paracocyclic operator of this paracocyclic object. Also, we introduce twisted modular pairs in involution for HH and derive (co)cyclic modules from them. Finally, we relate the paracocyclic object associated with HH to that associated with an HH-module coalgebra via a categorical version of the Connes-Moscovici trace.

Keywords

Cite

@article{arxiv.2205.15641,
  title  = {On the braided Connes-Moscovici construction},
  author = {Ivan Bartulović},
  journal= {arXiv preprint arXiv:2205.15641},
  year   = {2022}
}

Comments

42 pages, many figures

R2 v1 2026-06-24T11:34:13.159Z