Article ID Journal Published Year Pages File Type
4585147 Journal of Algebra 2013 39 Pages PDF
Abstract

This paper examines the concept of a stratified exact category in the context of Dedekind domains and corresponding finite Galois groups. BGG reciprocity and duality are proven for these categories making them highest weight categories. The strong connections between the structure of the category and ramification in the ring are explored.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory