The relationship between the exactness of a first order differential calculus
on a comodule algebra $P$ and the Galois property of $P$ is investigated.
@article{9708014,
author = {Hajac, Piotr M.},
title = {A Note on First Order Differential Calculus on Quantum Principal Bundles},
journal = {arXiv},
volume = {1997},
number = {0},
year = {1997},
language = {en},
url = {http://dml.mathdoc.fr/item/9708014}
}
Hajac, Piotr M. A Note on First Order Differential Calculus on Quantum Principal Bundles. arXiv, Tome 1997 (1997) no. 0, . http://gdmltest.u-ga.fr/item/9708014/