Algebra and Representation Theory Seminar
On class groups and non-unique factorization
Kimball Martin, University of Oklahoma
Friday, October 14, 2011
Given a ring of integers of a number field, it is well known that the class group measures the failure of unique factorization in the ring. What is not well known is what this actually means. We will describe a recent result which gives, from the naive point of view, a complete explanation.