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Archive of posts filed under the Algebra category.

Joint Mathematics Meetings 2011

I spent last week in New Orleans for the Joint Mathematics Meetings 2011. I’d made a rather last minute booking after noticing a couple of sessions could be useful, and hadn’t quite grasped the scale of the event. I’d normally think of 200 mathematicians as a large gathering, but the JMM had over six thousand [...]

First Year Presentation

Slides and Report from my first year presentation on the point counting problem.

Mathematical tourism

In search of the quarternions.

A less very, very stupid way of counting points on elliptic curves

Sidestepping brute-force determination of the number of points over a finite field by construction of zeta functions.

Small defect types in Maple

Maple procedures for finding polynomials of a given trace and degree; hence for establishing the possible types of zeta function for small defect.

The Torsion subgroup of an Elliptic Curve

Yet more Maple code, this time for finding/classifying torsion points of an elliptic curve.

Implementing the Group Law Algorithm in Maple- finite fields

Extension of Maple code to finite fields.

Implementing the Group Law Algorithm in Maple- Examples

Sample problems from Silverman on the Elliptic curve group law.

Implementing the Group Law Algorithm in Maple- Code

Maple procedures for group law computation on Elliptic curves.

Lecture notes- Galois Theory

Notes from MA40037 Galois Theory, as pdf.