The Chern-Galois character
K理论与同调
2007-05-23 v1 量子代数
摘要
Following the idea of Galois-type extensions and entwining structures, we define the notion of a principal extension of noncommutative algebras. We show that modules associated to such extensions via finite-dimensional corepresentations are finitely generated projective, and determine an explicit formula for the Chern character applied to the thus obtained modules.
引用
@article{arxiv.math/0306436,
title = {The Chern-Galois character},
author = {Tomasz Brzezinski and Piotr M. Hajac},
journal= {arXiv preprint arXiv:math/0306436},
year = {2007}
}
备注
4 pages, LaTeX