### About this blog

This blog started out as a group blog about random parts of math, then evolved into a solo blog used primarily for studying for my (Charles) oral exam. Now, it's changing into a group blog in algebraic geometry, with me, Charles Siegel, Matt DeLand, and Jim Stankewicz currently contributing.

Header is taken from the larger work by fdecomite under the creative commons license.

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# Monthly Archives: July 2009

## Dedekind Domains in Finite Galois Extensions

Last time we examined Dedekind domains in finite separable field extensions. One advantage to using a separable field extension that we did not use is that we can base extend to a finite Galois extension, where as we see the … Continue reading

## Dedekind Domains in finite separable extensions

Last time we took a look at Dedekind domains with fraction fields and found that if was any finite field extension of that the integral closure of in is Dedekind. The proof in this case is somewhat involved, but becomes … Continue reading

Posted in Uncategorized
4 Comments

## Dedekind Domains, Krull-Akizuki and the Picard Group

As has been hinted in many previous posts, many facts about algebraic number theory tell us about geometric objects like elliptic curves. For instance, if you are working on a problem which primarily uses the affine geometry of a curve … Continue reading

Posted in Curves, Uncategorized
5 Comments