Quantization of infinitesimal braidings and pre-Cartier quasi-bialgebras
Abstract
In this paper we extend Cartier's deformation theorem of braided monoidal categories admitting an infinitesimal braiding to the non-symmetric case. The algebraic counterpart of these categories is the notion of a pre-Cartier quasi-bialgebra, which extends the well-known notion of quasitriangular quasi-bialgebra given by Drinfeld. Our result implies that one can quantize the infinitesimal -matrix of any Cartier quasi-bialgebra. We further discuss the emerging concepts of infinitesimal quantum Yang-Baxter equation and Cartier ring, the latter containing braid groups with additional generators that correspond to infinitesimal braidings. Explicit deformations of the representation categories of the gauge deformed quasitriangular quasi-bialgebras are provided.
Keywords
Cite
@article{arxiv.2505.17729,
title = {Quantization of infinitesimal braidings and pre-Cartier quasi-bialgebras},
author = {Chiara Esposito and Andrea Rivezzi and Jonas Schnitzer and Thomas Weber},
journal= {arXiv preprint arXiv:2505.17729},
year = {2026}
}
Comments
29 pages, to appear in J. London Math. Soc., comments are welcome