On the braided Connes-Moscovici construction

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

In 1998, Connes and Moscovici defined the cyclic cohomology of Hopf algebras. In 2010, Khalkhali and Pourkia proposed a braided generalization: to any Hopf algebra H in a braided category B, they associate a paracocyclic object in 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 H and derive (co)cyclic modules from them. Finally, we relate the paracocyclic object associated with H to that associated with an H-module coalgebra via a categorical version of the Connes-Moscovici trace.

Details

Original languageEnglish
Pages (from-to)837-889
Number of pages53
JournalJournal of Noncommutative Geometry
Volume18
Issue number 3
Early online date3 Dec 2023
Publication statusPublished - 2024
Peer-reviewedYes

External IDs

Scopus 85197368210

Keywords

Keywords

  • Hopf algebras, braided monoidal categories, traces