Weak crossed-product orders over valuation rings
Rings and Algebras
2014-06-30 v1
Abstract
Let be a field, let be a valuation ring of of arbitrary Krull dimension (rank), let be a finite Galois extension of with group , and let be the integral closure of in . Let be a normalized two-cocycle such that , but we do not require that should take values in the group of multiplicative units of . One can construct a crossed-product -order with multiplication given by for , . We characterize semihereditary and Dubrovin crossed-product orders, under mild valuation-theoretic assumptions placed on the nature of the extension .
Keywords
Cite
@article{arxiv.1406.7065,
title = {Weak crossed-product orders over valuation rings},
author = {John S. Kauta},
journal= {arXiv preprint arXiv:1406.7065},
year = {2014}
}