On Takeuchi's correspondence
Rings and Algebras
2025-01-13 v1
Abstract
In this paper we review the Takeuchi correspondence between right coideal subalgebras and left -module factor coalgebras of a Hopf algebra with bijective antipode. We are especially interested to describe the situation when the faithfulness assumption in the conditions of flatness and coflatness is dropped. This study was motivated by several questions which remain open.
Keywords
Cite
@article{arxiv.2501.06045,
title = {On Takeuchi's correspondence},
author = {Serge Skryabin},
journal= {arXiv preprint arXiv:2501.06045},
year = {2025}
}
Comments
plain tex, 43 pages